1. No need to install any software, plug and play, easy to install
2. Symmetrical design of left and right hands, accord with ergonomic design, round and comfortable appearance
3. Anti-slip grille rollers for comfortable control
4. 1000DPI high-precision tracking engine, responsive and smooth operation
5. Working method: photoelectric
6. Number of keys: 3 keys
7. Photoelectric resolution: 1000dpi
8. Interface: USB
9. Buttons: left button, middle button, right button
10. Cable length: 1.5 meters
11. Features: mute button, durable, high-precision engine
12. Size: 6.2x11.2x3.5cm