Specification:
Vibration Speed: 30000/min
Power:1 AAAA Battery(not included)
Package Content:
1 x Teeth Stain Eraser Host
3 x Grinding Head
Notice:
Not fit for the following people:
People with oral allergy.
People who recently had oral surgery, or in the oral treatment period.
People with severe bleeding gums.
Do not placed in the bathroom or damp places, keep it away from children.
It is only used to remove teeth stains, not for other purposes.
Do not clean this unit with alcoholic materials or disinfectant. 
