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
