1. Noise: 36dB or less
2. Size: 14.3 x 9.2 x 26.3cm
3. Features: 3-speed adjustment, comfortable and light, self-contained support, long-lasting battery life, low-noise operation, self-contained lanyard, digital display
4. Weight: 163g
5. Power: 1.2-9w
6. Input voltage: 5V/1A
7. Working hours: 2.5-8 hours
8. Applicable area: less than 10 square meters
9. Battery capacity: 1500mah
10. Power supply mode: USB/built-in lithium battery