2.4Ghz  RF wireless Technology &intelligent Frequency hopping Technology     -working range: effective 10-12meters, farthest 30 meters    -two AA batteries (not included in delivery) appox 3 months battery life       -compatible with windows95/98/Me/NT/2000,windows vista,windows7/Apple/        Cordless Keyboard, Touchpad Keyboard, multimedia keyboard, office keyboard, htpc keyboard, waterproof keyboard, game keyboard, ergonomic keyboard, aluminum keyboard, luminous keyboard, folded keyboard, plastic keyboard, industrial keyboard          -Energy saving management                    -10 million times key switch life             key number : 96keys (including 14 internet/multimedia hot keys )            mouse  :       tackball  , three buttons with scroll wheel    1000DPI     \\