Logitech V250 Cordless Mouse/number Pad

All-terrain optical engine for working on just about any table or surface
Sleek, smart number pad enters your numbers quickly, works as a calculator or controls PC audio and video
Wireless USB mini-receiver fits into crowded connector areas, without the need for any cables
Power-saving tools - Conserve power for both your mouse and keypad to stay up and running on the road even longer