ABS body, food grade Nylon brush and silicon
Appearance Patent Protection
USB charge, 5 modes operation
Li battery with capacity 500mAh, over charge protection
Rating: 1W, 3.7 V DC
Continuously use 60 day one time charge (4 minutes)
Quick charge, 2 hours full charge
Good user experience, low noise, light vibration.
Water proof IPX7
Auto shut off in two minutes, 30s mode chance alert