EH0391B Features 2.4GHz wireless air mouse， keyboard and remote control Works with PC， android TV box and smart TV Convenient and efficient for conference， presentation and entertainment Equipped with USB receiver， easy to install General Specs Brand & Model T20 Transmission Mode 2.4GHz Keyboard Function Yes Mouse Function Yes Operating Range Up to 10 meters Receiver USB 2.0 receiver System Requirement Windows 98/2000/Me/Vista/NT/XP/7， Android Dimensions 130 x 46 x 10 mm Package Details Weight: 110.21 g Size: 20.7*6.2*3 cm