Brand N/A Wireless 2.4G Power Supply 1 x 23A battery (included) Distance 20 M Laser Pointer Supported Red laser pointer Color Black Supports System Windows 2000 / 98 / ME / XP Features Adopts USB and RF technology integrated computer and laser pointer function; Great for products presentation teaching and academic conference; Control distance: more than 20m allowing you to control your computer at each corner of the room; Laser button R: switch button; Up triangle: turn to last page; Down triangle: turn to next page; LED flashing: receiving signal; Easy and convenient to use; Mini and portable; Suitable for PC laptops matching w/ projector; Modulation frequency: 433M (RF) 315M (IR); Control distance: 20m (RF) 15m (IR); Laser distance: 200m; Power consumption: laser: 16mA standby: -0.07mA Packing List 1 x Laser pointer 1 x Wireless receiver 1 x Battery 1 x Waterproof packing bag