1. 2.4G wireless technology, 15m connection distance
2. Mute button, do not disturb others
3. USB receiver, plug and play
4. Compatible with Windows 2000/ME/XP(X64)/Vista/7/8/10, Mac OS X (V10.4 and above) and other systems
5. Ergonomic design, comfortable hand feel, non-slip and sweat-proof
6. Small and portable
7. Working method: photoelectric
8. Optical resolution: 1600dpi
9. Number of keys: 2
10. Number of rollers: 1
11. Battery: AA battery (not included)
12. Size: 99x60x38.2mm
13. Weight: 50g