Gembird Wireless optical mouse - Ergonomic 6-button Wireless optical mouse Black Ergonomic design minimzes strain on the arm, wrist and hand Intelligent power saving technology - Long battery life No mouse pad required CPI button for quick resolution changes (800 - 1600 DPI) Next Previous buttons for faster Internet browsing Operating distance: up to 10 m Power supply: AA battery x 1 pc (not included) Više informacija na linku