The Warren vertical wireless mouse is ergonomically designed to reduce the pressure on the wrist and help prevent carpal tunnel syndrome. Enjoy quick and accurate cursor control while standing or sitting and help reduce that tired feeling after using your mouse all day. Operating at 2.4 GHz, this mouse includes a built-in rechargeable battery with a power-saving mode. In addition, the Warren has an operating range of 10 metres, adjustable resolution from 800 to 1600 DPI and presentation controls. Includes Nano USB receiver and USB charging cable. Material: ABS.