Features

• Wireless notebook mouse
• Long battery life
• Convenient snap-in receiver
• Optical sensor tracks mouse movement
• Designed for use with either hand

Reviews (193)

Nice basic mouse, once you get it on.
I have been using this mouse for over a year now and it runs pretty smoothly. Normally the mouse is within a feet of the sensor and sometimes I enjoy sitting back and using the mouse scroll about 2 feet away, scrolling down webpages.
Good mice like Jerry !!!
It performs very well. Best value for your money.
Could be better
This mouse is actually about 2/3 normal size, which makes it more portable than a normal mouse but fits my hand reasonably well. Once the battery is fitted in, the mouse is significantly heavier than a normal mouse which takes some taking used to but is not a problem for every day use.
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Editorial Review

Sleek, small, and finished in a sophisticated two-tone black-on-black paint scheme, the Logitech Optical Mouse Black is one of the least expensive name brand optical mice in the marketplace. Featuring optical tracking technology, which monitors movement via a tiny light-emitting diode in lieu of a traditional rolling ball, it is more precise and requires far less cleaning than a conventional ball mouse. Moreover, you can use it on practically any flat surface aside from clear glass, thus negating the need for a mouse pad.Read more

Features

• Smooth scroll wheel based on optics
• Contoured design for comfortable use
• Instant setup -- no software drivers necessary
• Black

Reviews (26)

At this price point i think the many other mice feel more solid than this logitech mouse.
I mainly chose this mouse because I needed one quickly and it was black and matched my set up. I had been using the standard greyish white optical mouse with a scroll wheel and a red light that shined out from under my wrist. This one feels smaller, but still comfortable. However a couple weeks of normal usage made the mouse much less solid feeling. The plastic now mushes as the seems flex slightly in my hand. I decided to have a friend repair the cable of my old mouse. :-/ I am going to donate this mouse to a friend who still has a tracking ball mouse. I like some of Logitechs products and higher end mice. But I would stay away from this mouse. Its not bad, its just not good enough to pick over other mice that cost the same amount.
Works Great
Works great. No software to install, just insert into a USB port and it works. Gret price too.

A decent mouse...
For a mouse valued at $12 and eligible for free shipping on orders worth over $25 (at least it was for me when I got it from amazon.com) this mouse is decent at best.I will be brief as possible in addressing its characteristics.
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Features

• Box Content - Logitech V270 Cordless Optical Notebook Mouse for Bluetooth, Installation guide, 2 AA batteries, CD with software (PC only), Carrying Case
• Designed for travel - More comfortable than a touchpad, instant-on performance for maximum productivity on the road
• Smart power management - Long battery life, on & off switch, power-saving modes and a low-battery indicator light
• Precision optical performance - 1000-dpi optical sensor technology for incredibly smooth, precise tracking
• Convenient carrying case - Comes with pouch for easy storage

Reviews (53)

Great mouse choice
If you have a laptop with bluetooth, you need this mouse. It works flawlessly; just like a regular wireless mouse. The advantage of a bluetooth mouse over a regular wireless mouse is that one doesn't need to plug anything into the laptop. Not only does that save a USB port, but it's one less thing to carry (or to lose). The batteries last for months, and it comes with a nice little pouch.

NEVER install Logitech's SETPOINT software.
I will keep it simple. :) I am using a dell notebook with WINXP and it has bluetooth s/w (Dell's supplied widcomm) already installed for my pda. The mouse got recognised and works right a way using Winxp's default driver. I kept the existing Widcomm bluetooth stack (or hub - as in logitech literature)without installing any logitech driver/sw from the included CD. Mouse can be turned it off at night, and turned back on in the morning, it has never been failed to reconnect. All is well until 1 day I want to assign the wheel button for keystroke assignment. So I d/l & installed "setpointxxx_v270"from logitech driver section. "setpointxxx_v270" is a bloated s/w contains 2 parts. 1st part is "setpoint" which customizes your mouse behaviour. 2nd part islogitech's own bluetooth stack & services & GUI which are supposed to install only when your pc doesnt contain any Bluetooth stack/hub. However after installing setpoinxxx_v270 & reboot & check update & reboot, bad things started to happen. V270 mouse will fail to reconnect after being turned off & on. It will also fail to reconnect when PC is resuming from standby.No matter what I do, the mouse refuses to reconnect. So I uninstall Setpointxxx_V270. Still it can be detected but failed to reconnect. I end up fixing it by manually remove all logitech residue craps & delete "Bluetooth Virtual HID mouse" under "Human Interface Devices" in "Device manager".(u have to "show hidden devices" to see it)Then reconnect the mouse again. Its clear that Logitech's setpointxxx_V270 will screw up the mouse BT driver.Now It works well without d Logitech's stupid s/w. In terms of hardware, I will rate 4 stars. Logitech loses 2 stars not providing a proper supporting s/w driver.

Best tracking for bluetooth
I have used a lot of bluetooth mice, and this one has the best tracking of ony of them. Be aware that bluetooth has some limitations, though. Almost any high quality wired mouse will perform better, and many RF mice will too. If you are a tricking maniac, or a gamer, don't use bluetooth, period. If you want bluetooth, either because you don't want an extra dongle, you need all your USB ports, or you need the long wireless range (for controlling presentations in a big lecture hall), this is one of the best mice you can buy.
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Features

• Microsoft BX3-00001 Wireless Notebook Optical Mouse (Winter Blue)
• Scroll wheel optical mouse
• Customizeable buttons
• Ambidextrous design makes working more comfortable
• Connects with tiny snap-in receiver connects that plugs into your notebook

Reviews (75)

NOT Good Long Term
I have had my mouse for about 8 months and it is broken. The "L" shaped design for the thing you hook to the computer is the problem. I will call it a receiver. It you stow the receiver too many times into the mouse it starts to break. Over time the receiver doesn't receive.
Great response, compact size
Overall, I really like this mouse. I hated having wires tangled at my desk, so I went ahead and purchased this one.
5 Stars........
Been using it for 2years and never any complaint. working great.
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Features

• Sensitivity Adjustment - Dedicated controls to switch “on-the-fly” from pixel-precise targeting to fast-twitch evasive moves.
• Advanced software - Battle-tune your MX™ 518 with up to five custom sensitivity settings.
• Superior grasp - Sculpted thumb support and contoured grip for incredible comfort during even the longest gaming sessions.
• 1,600-dpi resolution - Ultra-high resolution, 1600dpi MX™ Optical Engine delivers pixel precise tracking.

Reviews (93)

Finally a mouse without annoyances
I've gone through about 6 different mice, and each one had their pros and cons (mostly cons).I finally found the MX518, and trust me, you don't know what you're missing until you've used it.
Beautiful.
I ordered this on the 31st and it came earlier today, 2 days before it was due. Very nice shipping by Amazon. I had a mouse with a ball before this, so I'm still getting used to the drastic change. It's much smoother. The only things which had me concerned about this mouse were that it looks somewhat big and it looked like the gray part was a baggy plastic covering which I feared would cause sweating. Both of the fears were just that, I was surprised to see that it was probably around 50% smaller than I expected it and the plastic covering is just a brilliant paint job. The buttons near the mousewheel, more specifically the one furthest back, can be a bit uncomfortable to use but other than that I have no problem with the mouse. Five stars!

Cool looking mouse...Good for gaming... Not sure how long it will last.
I like this mouse, but I am not sure how long it will last.I play a right-clicking game, and it seems that the right click is going.No problems yet, but I am not sure.This is great for casual gamers, but the jury is still out for hardcore ones. ... Read more

Editorial Review

Logitech's MX500 features MX Optical Engine tracking technology that lets you mouse however and wherever you want, faster, and with great response. A new benchmark in optical systems combines high resolution and high frame rate to achieve superior performance, including an 800 dpi sensor for unparalleled accuracy.Read more

Features

• MX Optical Engine delivers more accuracy and control on more surfaces than ever before
• No mouse pad required; mouse glides smoothly across almost any surface--no mouse ball to get dirty or dusty
• Two thumb buttons let you easily move forward or back between pages on the Internet
• Cruise Control scrolling system provides more efficient scrolling through long documents or web sites
• PC and Macintosh compatible (Mac requires USB connection)

Reviews (126)

Great Mouse
I'm using it right now actually.It has a great feel in your hand, the extra buttons are all in great locations.I think it's one of the best mice I've ever used.I like the texture of it too, kinda rubberized.Works well.

this mouse is perfect for me
i haven't had a single problem with this mouse like i had with so many other roller ball mouses. i don't think i will ever get another that doesn't have an optical lazer. i love the fact that there is the two buttons on the side for flipping back and forth between pages. it is perfect placement. it does have a cord, but i still find that a safty net considering all the problems i had with all the cheep cordless mouses (mice?) i bought. you won't be disappointed with this piece of equipment.

Great mouse, great price
If you're moving up to an optical mouse from a mechanical ball mouse, the MX500 is a good combination of performance and price. I haven't tested laser mice yet, so I can't compare those to the MX500, but I suspect like other gaming devices, high-end laser mice are great for hard-core gamers, whereas an optical mouse like the MX500 would more than suffice for the rest of us. Like other technology purchases, you want to look for that sweet spot in the price/performance combo.
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Features

• Award-winning Scroll Ring around the trackball makes scrolling quick and easy.
• A user says -One of the most eloquent designs of any input device on the market Largest ball of any of the mainstream, consumer trackballs Trackball has great momentum and virtually frictionless rotation.
• Largest ball of any of the mainstream, consumer devices
• Great momentum and virtually frictionless rotation
• Detachable wrist rest cradles your hand in comfort, Windows or Mac compatible

Reviews (78)

Best Trackball Ever!
I have always been a fan of Kensington trackball products, and I thought they had cornered the market with their previous gray and blue model.I was skeptical about replacing that one; but after four years of use, the moving parts were no longer in prestine condition.Fortunately, I had the opportunity of using the new model at work, and I was convinced that this optical K Mouse was well worth owning.Its smooth movement made computer use more enjoyable, and its contour design reduces my wrist stress factor to zero.This input device is awesome!

Not broken in - Heavy ball
I bought two of these and have only used them a couple days.What I dislike most about it is the weight of the trackball.It is too massive to expect to be able to use delicate movements of one finger.It looks like a pool (table) ball that is especially painted.I have a little arthritis and at first I thought I would have to return it.It was annoying to see that the three little red balls that hold up the trackball were so stiff it made the trackball hard to turn.Turning it upside down and rolling it around helped but the stiffness was noticeable for hours.Not what I expect in a quality product. I use the ball with two fingers. The weight of the ball makes the whole thing topheavy so it is difficult to balance on my lap (where I usually use it). I did not like the size and placement of the buttons because there is no really comfortable position for my large hand.I think if Kensington kept the radial design of the buttons but made more of them and if the buttons extended further then I could use their programmabiltiy to get a good fit.
Great, but DON"T WASH THE BALL...
The advice to wash the ball is wrong. I did, and the ball would barely move... friction. Untill Irubbed a little skin oil on it... then it flew! Continues to spin with the slightest toch. It's great. I laughed, I cried. I'll never go back to a regular mouse ever! ... Read more

Editorial Review

Reliable optical technology combined with an innovative scroll wheel that acts as a third button sets Logitech's 904353-0403 Trackman Wheel Optical apart from ordinary trackball mice. Patented optical technology provides superior precision, reduced wear, and smooth motion, and eliminates the need for regular cleaning. The scroll wheel provides easy scrolling and the added convenience of an extra mouse button, enabling you to jump easily to your favorite Web sites. The ball is ideally positioned for thumb operation, and the comfortable shape of the mouse allows for strain-free extended use. Its smaller size also saves desk space, reduces hand and wrist movement, and plugs very easily into your system's USB or PS/2 port. Compatible with both Windows and Macintosh systems. ... Read more

Features

• Patented optical marble technology delivers superior precision, reduced wear and smooth tracking, even if the trackball gets dirty.
• Precise thumb control
• WebWheel provides convenient scrolling and fast, easy Internet access
• Made with the quality of Logitech, the world's largest manufacturer of mice and trackballs
• 5-year warranty

Reviews (74)

Love it...
This is my first trackball mouse, and I am so happy that I discovered it. This mouse is the perfect size for my hand and has become even more natural over the past few months than a regular mouse...
Trackball a must!!
I have always sworn by Logitech Trackballs, and this one did not disappoint.Very comfortable, easy to use, and a great price.

Solved my RSI issues
I was very reluctant to try a ball instead of a mouse, but my IH ergonomist said she would stop nagging me if I tried this for a week and if I did not like it she'd switch me back. After two days I told her she was not getting the Trackman Wheel back. That was five years ago and since then I have insisted on these on my computers at work and bought them for my computers at home, all told I've acquired about six of these little guys. I love them.
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Editorial Review

Logitech's Optical Marble mouse gives you the familiarity of a mouse with the convenience of trackball navigation. Designed for comfort in either hand, this space-saving, four-button trackball boasts Logitech's innovative optical tracking system to deliver superior precision and smooth motion with virtually no maintenance or cleaning required. You get two ways to scroll: click two small buttons for page up and page down, or click one of two large buttons and use the ball for auto scrolling. The trackball gives you precise fingertip control, and the included WebWheel software enhances your Internet browsing. Two AA batteries (supplied) keep the Marble mouse racing for about three months. ... Read more

Features

• Durable optical technology for smooth precision and resistance to dirt, eliminating the need for cleaning
• Large, finger-operated trackball for superior control and reduced hand and wrist movement
• Sleek shape flexible enough to use in either hand
• MouseWare software included for easy scrolling on the Web (in Windows and Macintosh applications)
• A variety of button assignments to customize your mouse buttons

Reviews (127)

My hand is numb.
My work place recently bought these for our workstations. It has caused about 30% drop in speed of service. Most of this is due to anesthetize effect of long term use. The other problem that has occurred is lack of fine control. After dealing with these trackballs I have come to the conclusion that they must be designed for gamers that use it for two hours or less.

blugggh!
all i can tell you is i tried to save money by purchasing this mouse. my boyfriend lost partial mobility of his hand a week into using this THING.... and seriously he could not move his hand without it hurting. i found it very uncomfortable and difficult to master using myself... i say forget saving money and save your hands! spare the extra ten bucks and buy a better mouse. stick with logitech, they have awesome mice USUALLY- just don't buy this particular design. it is awkward!

Not the trackball I was searching for.
I'm a lefty, and I've been searching for a trackball mouse I could use on a CAD program.This isn't it.Though it is similar to the Logitech Trackman wheel (for right hands), the scroll functions are put into two seperate buttons, instead of one wheel.So for any of you who have programs with functions built into pressing the scroll wheel, it just doesn't work.Also, the track ball in the center is not as ergonimic as it should be, as you use fingers instead of thumb to control. ... Read more

Features

• Compact design for easy portability
• USB interface for simple, plug-and-play setup
• Advanced optical sensor does not require a mouse pad
• PC and Mac compatible

Reviews (28)

Hands down the best mouse you can get for your laptop
This is a very high quality mouse and it's extremely portable.I've had this mouse for over two years without any problems.It's extremely accurate b/c of it's optical light, but it's main strong point is the fact that you can wrap the cord around the mouse for storage.Definitely one of the best investments I made for my Sony VAIO.

Accurate, but a little small (it *is* a Notebook mouse)
The best feature in this mouse is the way the cord winds around the base- pure genius.It works as it should, but try getting a mouse pad- I know they call it an all terrain sensor- But it's not.When used with a pad or on a white smooth surface, it works like a dream.
Best Notebook Mouse
You have to consider that wire mouse is better in all category compare to wireless just name apart. Wireless is freedom but battery takes it back. This mouse is perfect if you have USB port on right side of your laptop (if you are righty or left side for lefty) so short wire isn't a problem. Just love it the way USB wire get wrap around and takes no space in laptop bag. Performance is not mean less compare to my home MX1000 laser mouse. You can't ask for more at low price ($13)..enjoy ... Read more

Editorial Review

Microsoft has replaced the old-fashioned mouse ball with the Wheel Mouse Optical, featuring an IntelliEye optical sensor to provide smooth and precise motion. Without a mouse ball, there are no moving parts to clean or wear down. The IntelliEye optical sensor is sealed in to keep out the dirt and lint that can cause a traditional mouse to skip or jam.Read more

Features

• Designed so it can be used by right-handed people or southpaws (that's left-handed people)
• Fast Scroll Wheel - Zip through those documents & webpages!
• 3-Button Design - Yep, the wheel is also a button (cool huh?)
• Color - White
• USB Connection (PS/2 adapter is included)

Reviews (106)

Great Mouse For the price
As far as computer accessories go I have found that the term "you get what you pay for" applies a lot. I don't think you can find a better optical mouse for the price anywhere, I love this mouse I'm on my second one but only because I accidentally severed the cord! GREAT BUY!!!

apparently she did not notice it HAS a cord; it is NOT wireless:
(see: my kitty and I love this mouse!!, November 4, 2003.) No hard feelings; i have made the same mistake before in a posting. I have one. Works well/ ok. I do prefer logitech, though. The administration should feel free to delete this along with her posting, or modify hers by deleting her last line, as her description is physically incorrect.

Size and weight makes a difference for an optical mouse!
Actually, I bought this after my first optical mouse -- that I've had for about five years or so -- finally burned out.The lights do eventually quit on these things.
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Features

• High Definition Optical technology offers better, more consistent tracking performance
• Designed for comfortable left or right hand use
• For use on a Mac or PC
• Point and click with the Magnifier to enlarge and edit detail
• Scroll horizontally and vertically through documents and Web pages

Reviews (16)

One flaw, otherwise pretty nice mouse.
I just plugged this mouse in yesterday, so I don't have a long history with it, but my first impressions are these:
Great Mouse as expected.
I bought this mouse to replace my previous Microsoft Wireless optical mouse. My old mouse lasted for about 5 years and was still working perfectly. It was just a bit worn down in appearance because I abuse it alot with gaming, etc. I wanted a mouse that was as good as my previous mouse, so I purchased this one which is nearly identical. The only real difference I can see is that the new mouse has the tilt wheel function. It is handy but takes me a little getting used to. I still try to click it and drag pages horizontally.
Great mouse, great price
Shopping makes a lot of sense, and in this case, I was able to save over 25% off of a major store price. ... Read more

Editorial Review

Logitech's cordless optical TrackMan lets you work where and how you want with the freedom of a cordless mouse, the comfort of a trackball, and the precision of optical technology. It's Logitech's most advanced trackball finger-operated trackball mouse. Save space and eliminate desktop clutter. Take advantage of extra buttons that help you navigate around Windows and the Web more easily. And with Logitech's patented optical technology, you get virtually maintenance-free precision and smooth tracking.Read more

Features

• No cord, no clutter, no hassle: cordless freedom, optical precision
• Comfortable, right-handed shape with a large, finger-controlled trackball
• Advanced buttons for easy navigation, plus a scroll wheel
• Smart power management keeps battery working for months
• Digital radio technology requires no line-of-sight; patented optical technology maintains smooth tracking and superior precision

Reviews (76)

Another GREAT Logitech product
I upgraded from a Logitech Marble (which still works perfectly after a year, I just wanted to go wireless). This is slightly bigger and has a larger ball. Your hand position is also a little different, which, to me, seemed very akward and uncomfortable at first. However, after about a day, this one became second nature and I couldn't imagine it being any different. I LOVE IT!
Optical Trackman Fan
I bought this cordless trackman to put in my office,
Good buy, some button programming required.
I'm really enjoying this device.It has made many tasks easier.One thing I will note is that the right mouse button is difficult to use where it is positioned.The button layout is flawed in this regard.However, I was able to reprogram one of the other mouse buttons under the thumb to function acceptably in this role. ... Read more

Editorial Review

The Microsoft Optical Mouse Blue is a well-designed, stylish, and efficient mouse that makes a worthy addition to any desktop. This mouse is shaped for ambidextrous use, fitting comfortably in either hand. It features two buttons and a central scroll wheel, and its silver and blue two-tone finish is complemented by the signature red glow characteristic of the Microsoft optical family.Read more

Features

• Unique clear scroll wheel and colorful design
• Fun optical glow--no mouse ball
• Comfortable for either hand
• Windows and Macintosh compatible
• Three-year warranty

Reviews (39)

After using it for 2 years.
It was nice mice I used.
My favorite Optical mouse
Have been using this mouse from 2003 until just this month in 2006 when the right button stopped working and I had to find a new mouse. For the three years of using it, this has been my favorite mouse ever. It is a simple design, and there isnt much extras on it, but I have loved the shape and weight of it. Plus the blue/grey color is pretty sharp looking, in my opinion.
well pleased
I am very glad that I ordered this mouse, and I'm sure I will tell everyone about it. Thank you. Debbie ... Read more

Features

• Tilt Wheel Technology makes scrolling easier, smoother, and faster than ever
• Longer battery life -- up to 6 months
• Comfortable in either hand
• Superior tracking speed translates into precise cursor movement and accuracy
• Compatible with Macs and PCs

Reviews (53)

I really like it
This is a pretty good mouse, I can't really expound more than those below me but, It is almost the perfect size, maybe just a tad big but, nothing to cause problems. It, in my opinion, is defenitaly not too heavy, it is actually suprisingly light to me. I installed it and it didn't work, I un-installed it and re-installed it and it worked great so, I am thinking it was just user error. This is a really great mouse, my opinion, buy it!

Sluggish scroll wheel and no 'click' feedback, but overall good
A decent mouse.I have used it at work for the past 2 years.I've had to change the batteries about once every 3-4 months which isn't too bad.
Flakey and terrible range
I have to have my mouse within a FOOT of the reciever for it to work at all, despite Microsoft's claim that the range is three feet. Perhaps my mouse is defective, but then that speaks to the poor quality control of Microsoft products. These are designed by Microsoft but made in China, and I can honestly say both are obvious from using it. ... Read more

Features

• Microsoft D66-00069 Wheel Optical Mouse
• IntelliEye optical technology
• Smooth, precise motion on almost any surface
• Scroll wheel for easy scrolling and zooming
• Works well with either hand

Reviews (22)

Good basic mouse
Works exactly as described, good price, what more would anyone want of a mouse?Highly recommended.

Not the greatest but not the worst.
I'm on my 2nd Microsoft Wheel Optical Mouse and heading for my third. I like the MS mice and have been buying them for years. The price is right and I've always liked the heft and feel. I had a hard debate between three and four stars. New these things rock. Once they get a couple years on them they tend to start double clicking when you only wanted to single click (disasterous in this virus heavy world) and the scroll wheel tends to roll by itself randomly up or down. That being said, I've already added it to my wishlist and will more than likely be buying my third within the week.

Excellent Mouse!
The Microsoft Wheel Optical Mouse is an excellent mouse!I have a white one that I have had for 4 years.It is just now wearing out where I need to buy a new one.It came with my computer.I love it! It is very comfortable for my hand and it never needs to be cleaned! One thing that I have noticed that you need to watch out for is the little black pads on the bottom will come off over time.Usually they can be easily put back on and it would not harm the mouse at all to put a drop of glue on one of the pads to hold it on.I love my Microsoft Wheel Optical Mouse! ... Read more

Features

• Five programmable buttons
• Microsoft Optical Technology
• Wheel scrolling
• Comfortable ergonomic design
• PC and Mac compatible

Reviews (3)

Microsoft Strikes Back

Probably the best wired optical mouse
This mouse is great for gamers.It's original version was very, very good with perfect response, nicely tactile buttons in perfect positions and light weight.The new version is as good as the original in most ways and adds several great features to an already wonderful design.First, the new electronics inside this mouse triple the accuracy with 9000 samples per second (compared to the originals very respectable 3000).It moves even better because Microsoft changed the feet on the bottom to a very slick material and used a thinner, more flexible wire.I know these sound like little things, but they actually do make the mouse "feel" nicer.Speaking of feel, the mouse is now covered in a soft, rubbery material.One of the few gripes I had with the original was the cheap plastic construction, corrected very elegantly in this new iteration.
Awesome!!!!!!!!!!!!
Prior to MS re-releasing this mouse I had been searching for the older x08 model online via eBay.I saw them going for $100+ sometimes for a brand new one!I had almost given up since the Laser 6000 mouse was such a flop.I was so ecstatic when they said they were going to re-release it.I saw it available a week or two ago and I bought four.Once I purchased it the next time I saw that it had been changed to pre-order.I thought that was strange but I actually received it in two days.It's the same exact mouse from prior years except for the color change.The buttons feel the same, the mouse acts the same, everything is pretty much the same.Yes, the scroll wheel has dedents so that you can know if you're switching just to the next weapon or whatever.
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Features

• Optical pointing device for right- or left-handed users
• 5 programmable buttons
• Provides more control and accuracy than trackball mice
• Requires no cleaning or mouse pad
• IntelliPoint software included

Reviews (117)

Great Mice.....
Iliked it very much. Have it for past 3weeks. no propbs, easy configurable, ergonomic. great options to chose for the buttons
Great Mouse
I'm a motion picture editor and use a mouse all day long. I've tried many input devices. This is by far the best. Very smooth and responsive, great software for the Macintosh, and a low height off the table, which is important ergonomically (you want your wrist to bend as little as possible).
Versatile: 5 Buttons, USB/PS2, Ambidextrous (symmetrical)
This is my current favorite mouse.I've been using them for probably five years now, on every machine I own (and several I don't).It has two buttons on top plus the scroll wheel (not a newer tilting one, just a straight up-down scrolling action) plus two buttons on the sides, which provide forward/backward browser functionality (like hitting Alt-Arrows).The software makes most of these programmable.
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Features

• Orbit Optical Trackball Mouse
• Comfortable for left or right-handed users
• Compact design, stays put and takes up less space
• It's inexpensive, looks cool and performs well
• Five year warranty

Reviews (26)

Very comfortable
This is the most comfortable mouse-type input device I've ever used. Of course, that's only out of a few other trackballs and a whole lot of mice. But it allows me to keep my wrist more neutral. It tracks very well. If it gets gummy, the ball is easy to pop out and clean on my shirt. After several years of use, I've lost one of it's little rubber feet and the nonslip coating on the surface of the dark gray area in the center is starting to peel away.

review for optical trackball
I've been working with a trackball for eons.Had to replace the one I was using because hey...evolution means USB!This trackball is fantastic.It's so smooooth in it's movement.I had already bought one for home... and bought another for work.Go for it. you'll love it!

Kensington trackball mouse
The placement of the right button is esthetically pleasing but physically uncomfortable as it interferes with the holding of the mouse and negotiating the trackball. I continuously have to reset the menu that pops up when I accidentally touch the right button. It needs to be moved so the hand doesn't rest on it or have to be held up off the mouse to keep from hitting it. ... Read more

Features

• Ideal for Travel or Home Office: Small, Compact Design Is Perfect When Space Is Limited - - On an Airplane Tray, Desk or Home Office
• Optical Sensor Technology: The Latest Optical Sensor Technology Ensures Perfect Response to Mouse Movements
• Retractable Cord: Avoid Extra Cable Cluttering Your Workspace By Adjusting The Retractable Cord to The Desired Length
• The utlitmate device designed for browsing the Internet, windows and long documents
• Instant plug-and-play

Reviews (65)

I love his little guy
This mouse is great for laptop use on the go. It comes with me everyday on the train and on buses on my way to work, and still works with no problems after a couple of drops and banging into things. My only complaint is the dimensions on this page are way off. The mouse is very small, for my hands I basically use it with 2 fingers, but it works great!

Ok...for short periods
I have used this mouse for 3 months with my laptop.Look/feel and general use are fine for short periods of time (~< 1 hour).However, I am currently shopping for a replacement as this mouse has one problem:Intermittently, after clicking/double-clicking, the mouse will go into a "move to the left" mode...and will continue to move until it reaches the edge of the screen.Sometimes it will move to the upper-left.This is so inconsistent as to be unpredictable.I will often (at least 10 times in a 30 minute period) have to give the mouse a wiggle to stop it from continuing.Frustrating if you are trying to click through a multi-level menu, for instance.Another example is if you working on any CAD-type or image editing project where you need to insert a line one segement at a time (mouse will move when it feels like it).
Nice but didn't last long
It is a Nice little mouse ideal for laptop use because it is not as bulky as its bigger brothers, and the retractable cord is very useful when storing the mouse in the laptop bag, But mine died just after a year of use and web support was of no use. Because of this i can't say this is a quality product and i give it 3 stars.
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