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 \\
