Feature: 1. 100m remote control, multi-system compatibility 2. Display, one-key hyperlink, ergonomic design, full screen black screen mode 3. When the green light is working, 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 push-type physical button has a raised design, which can be operated freely without looking down, and the presentation is smoother Plug and play, no need to install drivers, the USB receiver is compatible with USB1.0, USB2.0, USB3.0 and can be operated after plugging in 7. 360 free remote control demonstration is more free and easy 8. Using 2.4G wireless transmission module, low power consumption, strong performance, suitable for various public class occasions, and accurate control makes the speech more calm and confident 9. 100m remote control distance /> 200m distance 10. APC automatic power control technology with large light spot and stable brightness Multi-system compatibility: suitable for Window xp 7 8 10, suitable for Android Mac OS 10.1 and below operating systems and for Office series page turning format files. Specification: 2.4G control distance: 100m Control distance: >200m Type: red light Battery: One AAA battery (AA battery) (without battery) packing list: 1 * Page Turning Pen 1 * Instruction Manual