1. This powerpoint presenter allows you to control slides from up to 100 feet away. 2. With the functions of page up, page down, full-screen, switch window, and hyperlinks. 3. The 656ft long range red pointer makes people easy to find the key point. 4. With the USB receiver, you have no need to download software. 5. It is easy to store in pockets and easy to carry anywhere. 6. Compatible with systems, as well as different presentation programs. 2 x AAA batteries (not included) Colour:Black Material:ABS Package Contents: 1 x Presentation clicker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.