This is a wireless presenter. By plugging the device into the USB port of a PC, etc., you can use this remote control to advance pages on the PC screen and point things out. Everything in the images is included. The box is crushed and slightly damaged, but there are no problems with the main unit. The following is a product description. Brand: Vbestlife Features: Portable Color: Black Controller Type: Android Maximum Range: 15 meters Battery Description: Alkaline Wide Compatibility: The presentation clicker is compatible with Windows 98, Se, Me, 2000, XP, Vista, OS X, Linux, and other systems, and can be used with all text documents in a compatible manner. [Compact and Portable] The 2.4GHz remote clicker has a compact structure and small size, making it convenient to carry in your bag when you go out. Presentation Control: The handheld presenter has comprehensive slide control functions such as forward, backward, start, pause, and black screen. [Ergonomic Design] The PPT presentation clicker adopts a unique curved design, making it less likely to hurt even when held for a long time, and it is comfortable to hold and easy to grip. Remote Control: The presentation clicker uses 2.4GHz wireless technology, which allows you to remotely control your presentation from a distance of about 15 meters.