1. Weight: 70.7g 2. Dimensions: 10.8 x 6.4 x 3.6cm 3. Resolution: 1600 dpi 4. Transmission method: Bluetooth 4.0/3.0, wireless 2.4G 5. Features: device switching, compact and portable, adjustable DPI, 9 months battery life 6. Working mode: photoelectric 7. Interface type: USB 8. Wireless distance: 10m 9. Power supply method: 1 x AA battery (not included the battery)