It's a great mouse - a bit pricey, but probably the best out there. It would be fine for me for home use, but a bit too big for my travels overseas. Here are reviewer's comments:
"Weighing 4.2 ounces and about the size of a large bar of soap, the VX Revolution Cordless Laser Mouse for Notebooks is a bit bigger than most notebook mice but still smaller than a standard desktop one. Its size makes for an ergonomic design that's comfortable enough to use every day but still small enough to fit in your laptop bag. The size also allows for convenient storage of the wireless receiver. The 1.75 inch long by 0.5 inch wide receiver fits entirely inside the mouse and is ejected with a small button on the bottom; we like that the mouse automatically turns off when the receiver is stowed, which saves power and ensures the mouse won't accidentally turn on when it's in your bag. The VX Revolution also features high-precision laser tracking that we found to be very responsive, as well as a handy LED battery meter so you know how much juice you have left and an on/off indicator light. Logitech claims the mouse will run for 120 days on a single AA battery."