1、Driver Free Installation: The presentation clicker is easy to install, plug and play, no drive required, simple operation and convenient to use. 2、Ergonomic Design: It has an ergonomic design, a comfortable grip, and a matte texture treatment process that is not easy to leave marks. 3、Long Standby Time: This presentation clicker is charged with lithium battery and has a long standby time. It can stand by for 90 days on a single charge. 4、Sensitive Buttons: The buttons are sensitive, and the push type physical button has a raised design, which can be operated freely without looking down. 5、Low Radiation: The radiation is small, and the laser can be measured immediately, which meets the national testing standards. Item Type: Presentation Clicker Material: ABS Model: for LZ-B1 Launcher: Control Technology: RF2.4GHz Control Distance: Approx. 100meters / 109.4yd Laser Distance: Approx. >200meters / >218.7yd Working Voltage: 3.7V Sleep Current: <20uA Operating System: for Windows XP 7 8 10, for OS X, for Linux, for Android Q Battery Type: 200mAh Rechargeable Lithium Battery (Built in Battery) Receiver: Compatible Interface: USB 1.1/2.0/3.0 Operating Voltage: USB Bus Power Supply (4.5 to 5.5V) 1 x Presentation Clicker 1 x Receiver 1 x Charging Cable 1 x User Manual