EH0297B Features 2.4GHz wireless technology QWERTY US standard keyboard Can be used with computer， TV and Media player Operating range is up to 300 meters General Specs Brand & Model MeLE Wireless Technology 2.4GHz Operating Range 300 m/100 feet Battery 3.7V 500mAh Button Life 100000 times Auto Standby Time 2 minutes Operating Systems Windows XP/Vista/7/Mac/Linux/Android Dimensions 169 x 48 x 19 mm Package Details Weight: 158.36 g Size: 17.5*5.5*3.5 cm Package Includes * MeLE 2.4GHz Air Fly Mouse & Wireless Keyboard & Remote Control * USB Cable * Receiver