1. Number of keys: 6
2. Compatible system: Win2000, WinNT4.0, WinXP, Win.NET, Win7/8/10, Mac OS X10.8
3. Rate of return: 250Hz
4. Operating frequency: 2.4G
5. Switch: FD3 million times white point
6. Working current: 11+/-2mA
7. Ergonomic design, fit the palm curve, long-term use, still feel comfortable
8. 1000/1200/1600 three-stage DPI switch freely, responsive
9. Material: ABS+UV coating
10. Wireless distance: about 15 meters
11. Battery: 5 good batteries (not included)
12. Dimensions: 111.3x76x71.4mm