Conclusion: We love the convenience of the small yet comfortable Kensington PocketMouse Optical Micro Wireless, which works wirelessly via an RF connection, then stores the USB RF receiver inside the mouse's case when not in use. Storing the receiver automatically shuts the mouse down to save on battery life.
Pros: Works wirelessly with RF receiver. The receiver tucks inside the mouse when not in use, automatically turning the mouse off. Comfortable wide body. Mouse turns off after a few minutes of inactivity. Powered by two included triple-A batteries.
Cons: No way to tell when batteries are running low.
Conclusion: But while the retractable cord is cool, it disappointed us when we tried to use the PocketMouse Pro with our desktop PC, too -- as you might want to, if you're tempted to spend the $40 both for traveling convenience and to replace an old rolling-ball mouse in your office.
Pros: Ingenious retractable-cord gimmick works like a charm, Smooth operation; slick button-customization software
Cons: You'll want to use it with your desktop, too -- but the cord's too short, A bit bulky for the tightest coach-class environments