1.IPx5 Waterproof, suitable for bathing or washing or taking makeup off .
2.Special silicone brush head and comfortable flexibility.
3.Reach 8000 times per minute massage design of high frequency vibration.
4.The product has compact shape and easy to carry, good design looking beautiful. 5.Power is more safe because of 1.5VAABattery, 2xAA battery continously working for 8 hours ；1.5V AA Dry Battery /USB