Fangrui Product Details 1. G70 Wireless & Wired Vertical Mouse Ergonomic Optical Mouse, Style: Wireless Charging Version 2. Features: 3. Optical Engine, Three-speed Dpi Speed Adjustment, You Can Choose Freely 4. Ergonomic Three-dimensional Design, The Back Of The Mouse Fits The Palm, Reducing The Pressure On The Wrist And Fingertips 5. High-precision Engine, Zero Delay And No Frame Skipping When Playing Games 6. Frosted Shell, Comfortable To Touch 7. Product Parameters: 8. Material: Abs, Electronic Components 9. Number Of Keys: 6 (keys) 10. Interface: Usb 11. Photoelectric Resolution: 1600dpi (dpi) 12. Adjustable Resolution: Four Gears 13. Working Method: Photoelectric 14. Wheel Direction: Four-way Wheel 15. Wireless Transmission Frequency: 2.4ghz 16. Wireless Operating Distance: 10 (m) 17. Wireless Built-in Battery: 500 Mah Lithium Battery 18. Cable Length: 1.5 (meters) 19. Dimensions: 12.8 X 7.7 X 6.3 Cm 20. Net Weight: Wired Model: 110 Grams, Wireless Model: 120 Grams