WiFi range (in meters): 10 mKeyboardSilentTouch TechnologyAdjustable keyboard heightSpill-resistant design2.4GHz wireless (10 meters)Nano USB receiverCaps lock indicator lightOn/Off power switch2 AAA batteries(Alkaline Battery)MouseSilentTouch TechnologyContoured compact shapeSYSTEM REQUIREMENTSWindows® 10,8,7 or laterChrome OS™Available USB port required.Smooth, responsive cursor controlOn/off power button1 AA batteries (Alkaline Battery)