1. Weight: 65 g 2. Dimensions: 12.85 x 6.7 x 3.8 cm 3. Number of keys: 6 keys 4. Acceleration: 20G 5. Wire: 1.7 meters 6. Interface: USB 7. System requirements: Win2000/XP/ 7/ 8/10/VISTA&Mac 8. Features: honeycomb hollow design, free mode switching, porous lightweight design 9. Image sensor: PAW3325 10. Moving speed: 200IPS 11. Working method: photoelectric a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a