Product Description Material: ABS+nylon Power supply mode: USB Battery capacity: below 800mAh Motor type: Coreless motor Power mode: electric Maximum power: 1.8W Motor speed: 31000 times/min Charging time: 2 hours Life time: 25 days Waterproof rating: IPX7 5 smart modes: cleaning, polishing, gentle, whitening, gum protection Color: white, black, pink Quantity: 1 set Package content: 1*host, 4*brush head 1.5 MODES TO TAKE CARE OF ORAL HEALTH - 5 kinds of smart modes, multiple care for oral health. Clean mode, polishing mode, gentle mode, whitening mode, gum care mode. 5 different modes are suitable for different teeth and gum conditions, and can even take care of your sensitive mouth and teeth. 2.2 MINUTES INTELLIGENT TIMER - There is a short pause every 30 seconds in use. This is the 2 MINUTES INTELLIGENT TIMER to remind you to balance the four areas of your mouth and to reach dental professional recommended brushing time. 3.DUPONT BRUSH HEADS - The bristles are made of DuPont nylon. The ends of the bristles are smooth, soft, wear-resistant, and non-absorbent, providing you with a safe and gentle brushing experience. The 30-hole high-density hair transplantation goes deep into the inside of the wisdom teeth for extra cleaning. The W-curved design fits each tooth better and removes stains better. 4.HIGH VIBRATION - Sonic electric toothbrushes employ strong powered motors to achieve 31,000 strokes per minute. Effectively clean your teeth and gums. 5.FAST CHARGE & LONG LAST - The charging indicator light flashes to remind the electric toothbrush needs to be charged. Last a total of 25 days of brushing cycle (2 minutes/2 times/day) after only 2-hour fully charged. IPX7 waterproof for easy water rinsing after each use.