Lithium Battery Charging Model: This presentation clicker features a lithium battery charging model, driver-free installation, plug and play, and magnetic absorption for convenient carrying. Ergonomic Design: The presentation clicker has an ergonomic design with a comfortable grip. One charge allows for 90 days of use. The keys are sensitive and not distorted. Low Radiation: The presentation clicker has low radiation, and the light illuminates as soon as it's pressed, meeting national testing standards. 2.4G High Sensitivity Chip: The presentation clicker has a 2.4G high-sensitivity chip for stable remote control, meeting daily needs. Simple Operation: The operation is simple and convenient; the presentation clicker can be used without a complicated process. Item Type: Presentation Clicker Material: ABS Model: LZ B2 P1 Mode: Page Turning Pen Mode P2 Mode: Multimedia Mode Transmitter: Control Technology: RF2.4GHz Control Distance: ≤ Approx. 100 meters Light Distance: > Approx. 200 meters Working Voltage: 3.7V Quiescent Current: <20uA Operating System: For Win XP, for win 7, for win 8, for win 10, for OS X, for Linux, for Android Q Battery Type: 200mAh Rechargeable Lithium Battery (built-in) Receiver: Compatible Interface: USB 1.1/2.0/3.0 Working Voltage: USB Bus Power Supply (4.5-5.5V) Package Includes: 1 x Presentation Clicker 1 x Receiver 1 x Charging Cable 1 x User Manual