Features:Computer Clicker Buttons Functions:on/off switchpage up (long press full screen/exit full screen)page down (long press black screen/exit black screen)red lightTransmitter Features:: 2.4GHzControl Distance: more than 100mMax Output: less than 5mWClass 3RLight Distance: more than 200mBattery: 1 x AAA Battery (Not included)Working Voltage: 1.5VSleep Current less 10uADimension: 138.8*17.6*15mmWeight: 18.6gRecevier Features:USB Version: USB 1.1, compatible with USB2.0, USB 3.0Working Voltage: 4.5-5.5V DCDimension: 24.7*13.8*5.14mmWeight: 1.6g