Electric automatic toothbrush safety materials: food grade silicone automatic toothbrush head. It is more comfortable to enjoy massage. High frequency vibrating automatic toothbrush head: its vibration frequency reaches 10560 - 30228hz/min, which is higher than the descaling frequency of the traditional hand brush. 360 degree automatic teeth whitening: technology, 360 degree brush in all directions. The surface and inside of the teeth can be cleaned 360 in all directions, and the hair is perfectly angled for precise cleaning. Hands-free: U-type silicone brush head, toothbrush 360 degrees in all directions, full brush in 10 - 15 seconds. The brush cleans the tooth surface and its internal orientation to save time. Three modes: whitening, massage and daily cleaning can meet your needs for teeth and gums in different conditions.< /p> Product Description Features: Level 3 ultrasonic vibrations 3 cleaning modes. Different modes can be adjusted as needed to make you enjoy brushing your teeth. Waterproof interface The charging interface adopts ipx7 waterproof design and can be used continuously for more 15 hours after full charge. Material: food grade silicon + ABS Shape: U Angle: 360 degrees Power supply: USB charging Frequency: 5000 - 15000 times/min Rated current: 1500ma Max. Rated voltage: DC 3.7v Input voltage: DC 5V Waterproofing: ipx7 Product size: 6*2.5*11cm Description: 1. Install the U-shaped brush head after filling. 2. Shake the liquid toothpaste from the foam and apply evenly to the U-shaped brush head. 3. Place the brush head in the mouth, loosen the U-shaped brush head, and choose the appropriate frequency mode. 4. It is easy to touch the teeth by shaking the toothbrush back and forth. Then a cleanser to brush your teeth. 5. After brushing your teeth, wipe the body of the machine with a damp cloth to avoid water and dirt. Package includes: 1 x Whitening Toothbrush electrical 1 x USB cable 1 x instruction