1. Material: ABS+silicone+electronic components
2. Size: 95x75x33mm
3. Net weight: 258g
4. Gross weight: 373g
5. Features: three-speed adjustment, 360-degree adjustment, separate design, noise reduction and mute
6. Power supply mode: USB/built-in lithium battery
7. Input current: DC 5V/1A
8. Rated power: 4w
9. Use time: 3-6 hours
10. Charging time: about 2.5 hours
11. Battery capacity: 2000mah