Fangrui Product Details 1. Hxsj M103 1600dpi 2.4ghz Wireless Rechargeable Mouse 2. 2.4g Wireless Transmission Technology, Energy-saving, Built-in Storage, No Need For Code, Smart Connection. 3. 15m Wireless Receiving Distance, Superior Anti-interference Ability. 4. Third Gear Dpi Adjustment Design, 800-1200-1600dpi. 5. Silent Design, Quiet And Elegant Office Wireless Mouse. 6. High Resolution: Max 1600 Dpi High Resolution For Fluid Motion. 7. Fashionable Slim Design: Slim Design For Sleek Look And Portable Use. 8. Add A One-click Desktop To Quickly Return To The Desktop. 9. 250hz High Rate Return Chip, Data Transmission Is Faster, Fast Cursor Positioning. 10. Specification: 11. - Material: Abs 12. - Key Life: 5 Million Timessilent Design 13. - Wireless Distance: 15m 14. - Work: Photoelectricity 15. - Battery Capacity: 500mahchargeable Lithium Battery 16. - Charging Cable Length: 25cm 17. - Project Type: Ergonomics Optical Mouse 18. - Resolution: 800,1200,1600(1200dpi Default) 19. - Operation Mode: Opto-electronic 20. - Rated Voltage Current: 3.7v 18ma 21. - Power Type: Rechargeable(charging Time 2h, Working Time 150h 22. - Type: 2.4ghz Rechargeable Wireless Mouse 23. - Buttons: 2 Buttons And 1 Round (middle Mutton) And Dpi Key And One-button Desktop Button(only Support Windows System) 24. - System Requirements: Windows 98 Me 2000 Xp Vista Win 7 Win8 10vista Mac Os Or Latest. 25. - Weight: 68.3g 26. - Size: 11.3x5.7x2.6cm