Doosl DSIT032 2.4G Wireless Green Light Laser Pointer Presenter for PPT Speech Meeting PresentationFeatures:Aluminum alloy body, which feels like frosted texture, fine and smoothBrilliant green laser pointer is easy to see on any presentation screeneven in a brightly lit roomSupport hyperlinks. It also combines more functions of page up, page down, play slides, black screen for PPT presentationWireless Presenter, it is equipped with top-grade microchip, up to 100 meters wireless range. Operating on 2.4G RF frequency, it is an ISM free frequency and can be used world-wide. It is made of nickel plating metal dome and silicone keypad, brings you comfortable touch feelingSupport Page Up, Page Down,Full Screen, Black Screen, Press and hold the Page Up button for full screen or exit. Press and hold the Page Down button for black screen or exitThe mini USB receiver supports plug and play technology. No driver is requiredBuilt-in docking bay stores USB receiver for easy pack up and portability, and ONE USB receiver can be controlled by SIX transmitters simultaneously Specifications:TransmitterTechnology: Radio FrequencyFrequency: 2.4GHzControl Distance: 100mClass IIMax Output: 200mWavelength: 532nmBattery: 400mAh polymer LithiumWorking Voltage: 3.7V~4.2VDimension: 133 x 27 x 13.3mmWeight: 46g USB ReceiverOperation System: for Windows 2003, XP, Vista, for Windows 7/8/10, for Mac OS, for LinuxDimension: 22.2 x 14.2 x 7mmWeight: 3g Safety Warning:Be warned that 2.4GHz pointers are not toys; they should never under any circumstances be directed into people's eyes or at passing aircraft.The pointer is not a toy and should not to be used by anyone under 21It is illegal to direct the beam at any flying objects, moving vehicles and any public or private structuresA pointer should not be directed at people or animalsA pointer can be dangerous if not used properlyPackage Included:1 x Doosl DSIT032 Pointer1 x USB Receiver