Transmitter Features:Technology: Radio FrequencyFrequency: 2.4GHzLight Color: RedWireless Cursor Control Distance: 50FTMaterial:PlasticColour: Black Remote Control Distance: 100-165FTLight Control Distance: 330ftMax Output: Less than 5mWWorking Voltage: 1.5VSleep Current less than10uADimension: 5.3x1.6x0.9 inchReceiver Features:Operation System: XP, Windows 7/8, OS, Linux, AndroidUSB Version: USB 1.1, compatible with USB2.0, USB 3.0Working Voltage: 5V DCAbout this itemAir Mouse Presentation Clicker Clicker for powerpoint presentations combines the function of air mouse, with wireless cursor control button and left/ right mouse button, which makes it like a true mouse. With it in your hand, you can be totally free from the constraint of keyboard and make your presentation more efficientPackage Contents:1 x Wireless PresenterIf the appearance of the buttons is different, it has no effect on the product