1. Optical resolution: 1600dpi
2. Number of keys: 5 keys
3. Wireless transmission frequency: 2.4GHz
4. Operating distance: 10m
5. Battery capacity: 500 mA
6. Charging time: about 2 hours
7. Life time: about 200 hours
8. Dimensions: 113x57x25 mm
9. Weight: about 66 grams
10. Receiver: External receiver
11. This mouse voice function only supports Win7/Win8/Win10/system
12. Support voice typing/28 languages translation/voice control application/voice search