Introduction:
Product Name: AZDENT Sonic Electric Toothbrush
Waterproof: IPX7
Decibel: less than 50 db, very quiet
Vibration Frequency: 15000-31000 times/min
Power supply: USB charging
Charging time: Less than 2 hours
Package contents:
1 pc Electric toothbrush Heads
or
1 Electric toothbrush + 1 USB charger