Ergonomic Right-Hand Design: The contoured shape with a soft rubber grip provides exceptional comfort and guides your hand into a natural, relaxed position for all-day use .

18-Month Battery Life: Go up to a year and a half between battery changes, thanks to an energy-efficient design and an auto-sleep mode .

Plug-and-Play Wireless: The included tiny nano receiver plugs into a USB port and instantly connects to your computer without any software installation or pairing hassle .

Smooth, Precise Optical Tracking: Logitech's Advanced Optical Sensor provides accurate cursor control and effortless text selection on almost any surface