Average Reviews:
(More customer reviews)Let me give you some background before you read my review.
I'm in my 30's. I use computer 8+ hours a day and start developing RSI symptoms.
I have tried / owned the following trackballs
Logitech TrackMan Marble FX Trackball
Logitech Optical Marble Mouse
Logitech Trackman Wheel Optical
Logitech Cordless Optical Trackman
Original 3 buttons Kensington Expert Mouse
Kensington Expert Mouse Pro
The Logitech Cordless Optical Trackman does not score well in my needs - eliminating / reducing my RSI related pains.
Pros: wireless, good build quality, good battery life, lots of programmable buttons, smooth scrolling trackball.
Cons: Cannot be used left handed, buttons are not located in convenient position (cruise buttons, scroll wheel are too small, awkward position of the forward/back buttons).
By far the biggest complaint is the most used left button.
This key is clicked N times a day so it should be easy to locate and click.
Instead, this button is concededly smaller than the one in Optical Marble Mouse and Trackman Wheel Optical.
Also, this button is positioned 45 degree on the left side of the mouse, and it requires some extra effort to click it, since you have to hold the trackman in position using your ring and little finger to counter the force you acted on using your thumb.
Consider this experiment, using only your thumb(without holding the trackman in position) and try to left click on it. You'll be tempted to secure the trackman using your other fingers. If you have to repeatedly do this, your muscle will be sore.
This is not the case for the kensington expert mouse or the Logitech Optical Marble Mouse, where the button is faced up and you can click directly on it without securing the device in position.
If you are young and not suffered from RSI, this might not be an issue for you. But for the others that who are seeking an ergonomic pointing device, this one is a no go.
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Product Description:
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.
Logitech's patented Optical Marble technology ensures smooth cursor movement, while 27 MHz cordless digital radio technology gives you reliable cordless freedom. The product offers advanced navigation features in a form-fitting, right-handed design. Its special drag-lock functions let you move text and images with ease, while Cruise Control scrolling lets you scroll rapidly through Web pages and documents by merely pressing a button. With conveniently located thumb-operated forward and back buttons, you can easily move through applications and Web pages without having to move the cursor to the browser's onscreen buttons. Two AA batteries (included) keep you powered for six months or more.
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