Pros: Ordered two, both work great...
Cons: until one week later and the pwer supply on one unit failed. Sucks! I hope Newegg hooks it up.
Pros: Great mouse. Excellent response. Great battery life.
Cons: none
Overall Review: I use Duracell rechargable AA batteries and they have been working since I got it, about 4 months ago
Pros: good, cheap, and does the job.
Cons: ?
Overall Review: Just wanted to let others know that I installed 2 of these into a new MacBook 2.2 White and they work fine. Recognized immediately with no issues whatsoever.