①. Toothbrushes Ultrasonic Electric Toothbrush, Rechargeable Toothbrush, Washable Electronic Whitening Toothbrush for Adults with Timer Powerful Ultrasonic Electric Toothbrush, USB Rechargeable, Rechargeable Toothbrush, Washable Electronic Whitening Toothbrush ②. Product Features: - Up to 41,000 movements per minute. - 3 HOUR CHARGE FOR MINIMUM 15 DAYS OF USE. - Gently and effectively reaches deep between teeth and along the gum line. - 2 - minute automatic timer, 30 - second intervals, ensuring thorough teeth cleaning in four quadrants. - IPX - 7 waterproof in bath and shower. - Long battery life, supported by USB charging, safe and easy, automatic shut - off after full charge, compatible with any power source. - To match the topography of the teeth, cleaning the gums and hard - to - reach places. ③. Material: ABS / TPE / DuPont nylon bristles Charging mode: 5V - USB charging Voltage: 3.7V Power: 0.5W ④. Features: 1. Imported food - grade DuPont brush, anti - spill, anti - scattering, rounding process. 2. Five vibration modes: clean, sensitive, massage, solving various oral problems. 3. Waterproof body design, the body can withstand water jet washing and penetration, IXP7 base, waterproof. ⑤. Long press the power button to turn off. It is normal for the toothbrush to deform during transportation. Soak in warm water and you can.