Fangrui Product Details 1. Rapoo Vt960 1600 Dpi 7 Keys Dual Mode Macro Programmable Symphony Rgb Backlit Wireless Gaming Mouse 2. Pmw3389 Game Sensor, Can Accurately Capture Displacement To Ensure Real-time Feedback Operation 3. Symmetrical Design Of Left And Right Hands, Ergonomic Design, Comfortable To Hold 4. Durable Micro Switch, Crisp Button, Strong Rebound 5. 8001000150020003000800016000 Dpi Tracking Engine, Cyclic Switching, Smooth Operation And Accurate Tracking 6. Approximately 16 Million Colors Rgb Backlight System, Brilliant Colors 7. Number Of Keys: 7 Keys 8. Photoelectric Resolution: 1600dpi 9. Acceleration: 50g 10. Refresh Rate: 400ips 11. Button Life: 50 Million Times 12. Features:symmetrical Left And Right, Non-slip Grille Rollers, Durable 13. Battery Capacity: 600mah 14. Charging Time: About 2 Hours 15. Size: About 6.3x12.5x3.8cm 16. Weight: About 110g