Fangrui Product Details 1. Pr-06s 4-keys Smart Wireless Optical Mouse With Stylus Pen Function, Support Voice Operation Translation 2. Features: 3. The Mobile Operation Is Easier Than That Of An Ordinary Mouse. 4. Voice Function Trigger Key Value. All Voice Functions Are Triggered By This Key. Press And Speak And Release To Realize The Corresponding Voice Function. 5. Voice Speaking And Voice Typing (voice Input Text) Are Triggered Under The Red Indicator Light State, Voice Search (custom Command) Is Triggered Under The Blue Indicator Light State, And Voice Translation Is Triggered Under The Purple Indicator Light State. 6. Voice Three-mode Function Switching, Press The Left Button And Turn The Wheel. Each Scroll Will Switch To A Mode. For The Deletion Function, You Can Choose To Delete It At One Time. Select The Unnecessary Content, Press And Hold The Right Button, And Then Keep Pressing The Left Button To Delete The Unnecessary Content. For Selective Deletion, Press And Hold The Right Button And Press The Left Button Again To Delete. 7. Specifications: 8. Number Of Keys: 4. 9. Resolution: 80012001600dpi. 10. Switch Life: 5000000 Times. 11. Current: 1.5v 15ma. 12. Rf Frequency: 2402-24080mhz. 13. Battery: 1 X Aaa Battery (lasts 6 Months). 14. Material: Abs+silicone. 15. Application: Computer, Smart Tv, Set-top Box, Etc. 16. Supported Systems: Windows Xp 7 8 10 11 17. Dimensions: 14.5x2.2x1.5cm. 18. Product Weight: 25g.