- Page turning pen: 300-meter control distance, suitable for presentations in conference. Users can move freely in the room and control PPT at any time. - Green laser, 10 times brighter than red laser, suitable for all demonstration screens. It can be displayed clearly even in a bright room. - Equipped with LCD screen to display time, with timer and silent vibration reminder, to help users master the time, no need to stare at the clock all the time. 1000 mAh lithium battery supports long-term operation. - Mini USB receiver supports plug-and-play technology, no driver required, plug into the computer to start the demonstration, no waiting required. - Supports page up, page down, full screen, black screen, hyperlink functions, supports most presentation software, compatible with Windows 2003, XP, Windows Vista, Windows 7, Windows 8, OS, Linux, Android, etc. Safety warning: 1. 433MHz transmitter is not a toy; under no circumstances should it be pointed at human eyes or airplanes. 2. The flip pen is for adults only. 3. It is illegal to aim at any flying objects, moving vehicles and any public or private buildings. 4. The laser should not be directed at people or animals. 5. Improper use of the page turning pen may cause danger. Color: Black Material: Plastic Package Contents: 1 x Wireless Powerpoint Clicker 1 x Receiver