Logitech Cordless Mini Optical Mouse mouse

Pros: LED battery warning, customizable left and right scroll buttons, great battery life

Cons: just a tad bit smaller than regular wireless mouses, but that's what you should expect when buying a "mini" mouse.

Summary: This thing is great. I've had it for about 3 months now, and it's worked marvelously. Haven't changed the battery yet, and the LED hasn't turned on either (and I use it quite often). This thing is great for traveling. I take it with me to all my classes. It gets stuffed in my computer backpack almost everyday, and it still looks brand new! It's a very cool mouse...and available cheap too. I bought one from Circuit City for $10 (after $20 rebate).