I have both my laptop and desktop placed on my study table. Both use mouses with long cables and it really peeves me that whenever I use one, the cable gets tangled with the other and vice versa. I do not want to keep tugging on the mouse all the time. I had my problem solved by buying an optical wireless mouse.
The mini wireless optical mouse I bought is generic. It does not have a brand name unlike most known optical mouses in the market. However, performance-wise, it is okay.
The mini wireless mouse I bought comes with a USB receiver. It did not mention how far the receiver would work so I did my own experiment on the distance it could cover. The wireless range works as far as 2 feet from the same table or nearby.
The mini wireless optical mouse also has a built-in compartment to store away the USB receiver. I find this feature very unique and convenient so I do not have to miss the small receiver whenever I go. The receiver can easily be ejected too by a button.
It has a low-battery indicator to remind you to change the battery when the power runs down. Changing the 2 AAA batteries is quite a feat for me considering my hands are already small. The mini wireless optical mouse has a small button to release the latch for the battery but everytime I do that, the mouse just slips. It goes off automatically when not used within 2 to 3 minutes.
System requirements of this wireless optical mouse are any Windows 98 and above (even the current Vista) and an available USB port. This is compatible to both Macintosh 10.0 and PC use.
Update On Jul 15, 2009: I rue the day I ever bought this. If I can only change the rating of 4.8 (because it was functional at the time I wrote the review) to nil, I would gladly do so. After only a month of usage and several battery changes, it just decided to end its life. Weird mouse!