1、Lithium Battery Charging Model: The presentation clicker is a lithium battery charging model, free drive installation, plug and play, magnetic absorption, convenient to carry 2、Ergonomic Design: The presentation clicker is an ergonomic design with a comfortable grip. One charge, the clicker can be used for 90 days, the keys are sensitive and not garbled 3、Low Radiation: The presentation clicker has low radiation, and the light is up as soon as it is pressed, which meets the national testing standards 4、4G High Sensitivity Chip: The presentation clicker has a 4G high sensitivity chip for stable remote control, meeting daily needs 5、Simple Operation: Operation is simple and convenient, the presentation clicker can be used without complicated process 1 x Presentation Clicker  1 x Receiver1 x Charging Cable1 x User Manual Item Type: Presentation ClickerMaterial: ABSModel: LZ B2P1 Mode: Page Turning Pen ModeP2 Mode: Multimedia ModeLauncher:Control Technology: RF 2.4GHzControl Distance: ≤ Approx. 100meters/109ydLight Distance: > Approx. 200meters/219ydWorking Voltage: 3.7VSleep Current: <20uAOperating System: For Win XP, for win 7, for win 8, for win 10, for OS X, for Linux, for Android QBattery Type: 200mAh Rechargeable Lithium Battery (built in)Receiver:Compatible Interface: USB 1.1/ 2.0/ 3.0Working Voltage: USB Bus Power Supply ( 4.5- 5.5V)