Origin : CN(Origin) Product: Electronic Toothbrush Material: ABS + Silicone Power supply: USB charging Battery capacity: 400mAh Charging time: Approx. 2 hours Continuous using time: 30 minutes Voltage: 5V Power: 5W Waterproof: IPX7 Vibration frequency: 48000rpm Charging indicator: blue light flashes while charging constantly on when fully charged Item size: 17*10*6cm Feature: 1. The U shape toothbrush head is made of food grade silicone soft non-toxic and no harmful effectively sterilizing and comfortably massaging. 2. Soft cleaning mode powerful cleaning mode massaging mode and cold light whitening mode. You can adjust it by simply pressing the power switch. 3. Designed for perfectly fitting human mouth in 48000rpm vibration it cleans teeth without dead angles. 4. USB rechargeable ensures hands-free teeth brushing experience and IPX7 waterproof for more efficient and convenient using experience. 5. Automatic memory function makes 45 seconds teeth brushing time and 15 minutes cold light teeth whitening time. 6. Ultrasonic wave technology adopted it can remove more tooth stain plaque bacteria in short time offering healthier and whitener teeth.