Spotlight control distance: more than 200m Remote control distance: 50M-100M Battery: One AAA battery (AA battery) (without battery) Beam: Red line Specifications: Function: 1. 100m remote control, multi-system compatibility 2. Display, one-button hyperlink, ergonomic design, full-screen black screen mode 3. When the green light is on, the blue light flashes slowly when the battery is low 4. Surface ergonomic design, comfortable grip 5. Matte surface treatment process, not easy to leave marks 6. The physical push button has a raised design, which can be operated freely without looking down, and the presentation is more smooth Plug and play, no need to install drivers, the USB receiver is compatible with USB1.0, USB2.0, USB3.0 and can be used after it is connected 7. Uses 2.4G wireless transmission module, low power, strong performance, suitable for various public class occasions, and precise control makes the speech calmer and more confident Packing list: 1 * Page turning pen 1 * User manual