Rapoo M200G 1300 DPI 3 Keys Silent Wireless Mouse 1. Three connection methods, comfortable and trouble-free 2. Symmetrical design of left and right hands, comfortable grip 3. Frosted surface, fine texture, non-slip and sweat-proof, comfortable hand feeling 4. 1300DPI tracking engine, responsive and smooth operation 5. High-precision invisible light tracking engine, accurate positioning 6. Use silent micro-motion, effectively reduce noise, suitable for libraries and other environments 7. High efficiency and energy saving, good battery life 8. Working current: 50mA 9. Power supply mode: 1 x AA battery (need to buy by yourself) 10. Working method: photoelectric 11. Photoelectric resolution: 1300dpi (dpi) 12. Number of keys: 3 keys 13. Interface: USB 14. Wireless transmission frequency: 2.4GHz 15. Operating distance: 10m 16. Working voltage: 3.7V 17. Buttons: left button, middle button, right button, Bluetooth button 18. Acceleration: 10G 19. Transmission mode: Bluetooth 3.0, 4.0 and wireless 2.4G 20. Size: 113x64x30mm 21. Weight: 60g