Wiress MouseTechnical parameter: 1. 2.4G wiress transmission technology 2. 10M wiress receiving distance 3. Three-speed DPI adjustment design 4. Quiet and egant office wiress mouse 5. Colorful light, cooler 6. High resolution: 1600 DPI high resolution of id motion 7. Sleek design: slim design, stylish appearance, easy to carryspecification: 1. Brand/Mod: M 402. Color: black, silver. 3. Material: ABS 4. Critical life: 5 million times 5. Wiress distance: 10m 6. Work: photoectric 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: photoectric 12. Rated voltage/current: 3.7V/18mA 13. Power supply type: rechargeable (charging time 2h, working time 150h) 14. Type: 2.4Ghz wiress 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 * 4.3cmpacking list:2.4 G wiress mouse x1USB receiver x1USB charging cable (25cm) x1Installation and use steps: 1. Remove the wiress 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, 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 occurs, please plug the charging cable into the front interface of the mouse to charge. Please try not to use it when charging