Description: Product: Wireless Presenter, equipped with top-grade microchip, up to 100 meters wireless range. Universal: Operating on 2.4G RF frequency, it is an ISM free frequency and can be used world-wide. Function: Comes with auto standby and deep sleep functions for energy-saving and durable use; Equipped with a separate switch and effectively avoids unwanted power consumption when you put it in your bag. Feature: It also combines more functions of page up, page down, play slides, black screen for presentation. Convenience and Portable: The mini USB receiver supports plug and play. No driver is required; Built-in docking bay stores USB receiver for easy pack up and portability. Operation system: for Windows 2003, XP, Vista, 7/ 8/10, for Mac OS, for Linux. Specification: Item Type: Wireless Presenter Laser Pointer Material: Plastic Color: Black Size: 13.8×1.7cm/5.43×0.67in (Approx.) Technology: Radio Frequency Frequency: Control Distance: Over 10m Max Output: Distance: >200m Wavelength: 650nm Battery: AAA*1 (Not included) Working Voltage: 1.5V Package Includes: 1 Piece Wireless Presenter 1 Piece USB Receiver 1 Piece User Manual(2 Pack) Note: Be warned that pointers are not toys; they should never under any circumstances be directed into people's eyes or at passing aircraft. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!