Fangrui Product Details 1. Rapoo 8000gt Bluetooth 2.4g Wireless Keyboard Mice Set Laptop Tablet Cell Phone Keyboard And Mouse 2. Connection Method: Bluetooth 3.0, 4.0 And Wireless 2.4g 3. Number Of Keys: 84 Keys 4. Key Travel: 3mm 5. Key Life: 10 Million Times 6. Battery Life: About 12 Months 7. Power Supply: 1 Aa Battery (not Included) 8. Size: About 29.5 X 14.6 X 2.25cm 9. Weight: About 240g 10. Features: 11. Two Bluetooth Transmission Protocols, High Efficiency And Energy Saving, Wireless 2.4g, Stable And Reliable Transmission, Three Connection Modes, Compatible With More Devices 12. The Keyboard Can Connect To Up To 4 Devices At The Same Time, And The Mouse Can Connect To Up To 3 Devices, And The Keyboard And Mouse Can Quickly Switch Between Various Devices 13. Fn+ins Can Quickly Switch The Mac System And Win System Key Positions, And The Important Function Keys Have Been Marked With Mac Key Prompts 14. Power Saving Program + Low Power Chip, High Efficiency And Energy Saving 15. Dual System Multimedia Shortcut Keys 16. Mouse: 17. Ergonomics: Symmetrical For Left And Right Hands 18. Working Mode: Optical Engine 19. Buttons: Left Buttonmiddle Buttonright Buttonbluetooth Button 20. Button Travel: 0.5+-0.2mm 21. Scroll Wheel Direction: Bidirectional 22. Maximum Acceleration: 10g 23. Maximum Tracking Speed: 30inchs 24. Resolution: 1300dpi 25. Power Supply: 1 Aa Battery (not Included) 26. Size: About 10.1 X 5.9 X 3.75cm 27. Weight: About 54.7g 28. Exquisite And Compact, Designed For Users With Small And Medium Hands, Symmetrical Ergonomic Design For Left And Right Hands, Fits The Curve Of The Palm, And Is Still Comfortable To Hold For A Long Time 29. The Upper Cover Adopts A Delicate Matte Surface Treatment Process, Which Is Comfortable To Touch And Delicate In Texture. The Rubber Hole Texture Is Used On Both Sides To Bring Good Anti-slip Effect 30. High-precision Invisible Light Tracking Engine, Accurate Positioning Without Fram