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| Logitech Optical Marble Mouse (USB/PS2) | 
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| Brand: Logitech
Category: CE
List Price: $29.99
Buy New: $13.99
You Save: $16.00 (53%)
New (56) Used (2) Refurbished (4) from $9.74
Avg. Customer Rating:  292 reviews
Sales Rank: 246
Color: Silver/Gray: Gray/Red
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 0.5
Dimensions (in): 9.5 x 8 x 2
nv:Device Type: Trackball
Connection Type: USB
Connection Type: PS/2
Hand Orientation: Ambidextrous
Tracking Method: Optical
Buttons: 4
Scrolling Capability: Yes
Warranty: 3 years warranty
MPN: 904360-0403
Model: 904360-0403
UPC: 097855010162
EAN: 0840356604541
ASIN: B00005T406
Availability: Usually ships in 1-2 business days
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| Customer Reviews:
 Not fully Mac compatible August 19, 2008
THE UP AND DOWN SCROLL BUTTONS DO NOT WORK WITH MY MAC (OS 10.5), and since the driver CD-ROM is FOR WINDOWS ONLY, I can't do anything about it. With this thing I have to mouse over to the scroll bar and click + drag up and down, which is a stupid hassle. If I'd known that I wouldn't have bought it. (It's too inexpensive to return.) To say that it's Mac compatible is false advertising. On the up side, if I had a PC, I'd probably be satisfied.
 Sticky ball is aggrivating: design flaw August 15, 2008
I really like this mouse than any other I've used. I write and do internet research all day long, and this has eliminated wrist pain caused by a traditional mouse. I have been using it for two years.
However...
From the get go, the trackball rolls a bit rough and has consistent stiction that is really irritating. I have tried cleaning, replacing with a new one, to no avail. Now looking for one that rolls more smoothly.
 Helped Me Eliminate Carple Tunnel Discomfort August 6, 2008
I purchased this mouse to help reduce the carple tunnel discomfort I was experiencing. After 2 1/2 years of use it has been very successful for this purpose and my carple tunnel discomfort has all but disappeared. My strategy has been to have a regular mouse and the marble mouse connected to my computer at the same time; and then to switch around from left hand marble mouse usage to right hand marble mouse usage to right hand regular mouse usage, a few times during every hour of computer usage. The marble mouse makes this easy since it can be used with either hand. I also have found it very comfortable to use the marble mouse in my lap.
 Horrible ergonimic design July 30, 2008
I bought this mouse thinking it would eliminate the finger pain I suffer in my left click finger. Although the trackball allows you to avoid using your left click finger it causes pain and stiffness in the rest of the fingers because of the poor ergonomic design. I find my self tensing most of my fingers to hold them off the right click button to avoid accidentally right clicking which happens quite often. This is because of its ambidextrous design. This was a waste of money. It may be good for a casual user of mice but not for someone who uses a mouse 8 hours a day as their profession. I've gone back to using my Evoluent mouse which isn't perfect either but causes me much less pain. Do not buy this mouse if your RSI problem is in your fingers. I am now looking for a foot pedal mouse instead.
 Excellent inexpensive trackball July 26, 2008
I purchased this trackball as my existing Microsoft Trackball Explorer was aging and I needed another finger operated trackball - thumb operated units caused pain after extended use. I was concerned that the button placement would be uncomfortable however I have found this not to be the case, using the trackball is very natural and I have not experienced any pain during extended use. The ball rolls very smoothly and the smaller inset auxiliary buttons (default to Back on left and universal scroll on the right) work well.
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