It supports Windows7 and above operating systems, Mac OS, Android and other operating systems, and supports stable page turning in various formats of Office Plug and play, easy to carry High sensitivity 2.4 Upgrade chip, low power consumption, strong performance, signal sensitive long remote control Integrated design 100 meters away [Product name]:Intelligent page turning pen [Control distance]:100 meters (actual distance will depending Increase or decrease due to surrounding environment) [Product battery]:1 x AAA battery(Shipped without batteries) [Laser distance]:Greater than 200 meters [Product weight]:29 grams [USB working voltage]:5V DC Colour:Black Material:ABS Size:14x2.5x1.4cm Package Contents: 1 * Page turning pen 1 * USB receiver 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.