HXSJ M40 2.4GHZ 800,1200,1600dpi Third Gear Adjustment Colorful Wireless Mouse USB Rechargeable Technical parameter: 1. 2.4G wireless transmission technology 2. 10M wireless receiving distance 3. Three-speed DPI adjustment design 4. Quiet and elegant office wireless mouse 5. Colorful light, cooler 6. High resolution: 1600 DPI high resolution of fluid motion 7. Sleek design: slim design, stylish appearance, easy to carry specification: 1. BrandModel: M40 2. Color: black, silver. 3. Material: ABS 4. Critical life: 5 million times 5. Wireless distance: 10m 6. Work: photoelectric 7. Battery capacity: 500mAh (rechargeable lithium battery) 8. Charging cable length: 25cm 9. Project Type: Ergonomic Optical Mouse 10. Resolution: 800,1200,1600. (The default is 1200dpi) 11. Operation mode: photoelectric 12. Rated voltagecurrent: 3.7V18mA 13. Power supply type: rechargeable (charging time 2h, working time 150h) 14. Type: 2.4Ghz wireless mouse 15. Buttons: 2 buttons and 1 round (medium lamb) and Dpi key 16. System requirements: Windows 98 Me 2000 XP Vista Win 7 Win8 10 Vista Mac OS 17. Product weight: 67g 18. Item size: 11.2 * 5.8 * 2.5cm 19. Package weight: 97g 20. Packing size: 12.2 * 8.3 * 4.3cm packing list: 2.4 G wireless mouse x1 USB receiver x1 USB charging cable (25cm) x1 Installation and use steps: 1. Remove the wireless mouse from the box. 2. Remove the mini receiver installed at the bottom of the mouse and plug it into the USB port of the computer, Free code, plug and play. 3. This product is a built-in lithium battery. You only need to set the bottom switch to the ON position. The charging cable is included in the package. When the cursor movement delay occurs, please plug the charging cable into the front interface of the mouse to charge. Please try not to use it when charging