MF-822 2.4G Wireless Mouse 4 Keys Mute Office Ultra-Thin Mouse Features: 1. Adopt high-quality key switch, mute and silent key design, simple and beautiful 2. Adopt brand-new optical chip, responsive and precise positioning 3. Non-slip 3D rollers, rolling smoothly, improve work efficiency 4. Wide compatibility, suitable for most computers, comfortable feel 5. Ergonomic design, small size, light and thin, good hand feeling 6. Wireless connection, stable signal Product parameters: 1. Material: ABS, electronic components 2. Features: ultra-thin, gaming mouse, ergonomics, mini 3. Working method: photoelectric 4. Wireless transmission frequency: 2.4GHz 5. Connection with computer: wireless 6. Photoelectric resolution: 1600dpi 7. Adjustable resolution: three gears and below 8. Number of keys: 4 keys 9. Interface: USB 10. Voltage: 3.7V 11. Current: 6mA 12. Battery: AAA battery x 2 (delivery without battery) 13. Operating distance: 10 meters 14. Product size: 11.1 x 5.7 x 2.2 cm 15. Product weight: 46g