Kensington wireless mouse : ergonomic mouse

Condition is just like new! *Wireless connection via Bluetooth LE or USB nano receiver *KensingtonWorks software lets you customize all 4 buttons, adjust cursor speed. ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks. *DiamondEye optical tracking technology for premium cursor control and accuracy *Patented Scroll Ring lets you scan up and down pages with ease *Large ball is designed as a perfect sphere to provide exceptional precision *Detachable wrist rest supports hand and wrist for ergonomic comfort *Ambidextrous design works equally well for both right-handed and left-handed users *Auto-sleep helps conserve AA battery life *Kensington worked directly with Microsoft to provide professional-level solutions that look as good as they function, so you can work like a pro