RF2.4Ghz Wireless Presenter, a great assistant for teachers, professors, meeting moderators, and more. Supports laser pointer, page up/down, and slide playback, all conveniently and easy to use. Ergonomic design, safe and comfortable to use. Comes with a USB receiver, plug and play, no software or drivers required, easy to operate. The USB receiver can be stored in the presenter, very practical. Powered by 1 AAA battery (included).