SG-551 Main Function

● Removes up to 7x more plaque vs. a manual toothbrush● High cleaning frequency: max 40,000 times / min● Help scientific brushing habit: 30s + 2mins Smart Timer，In-handle timer pulses every 30 seconds to let you know when to switch areas of the mouth,2 minutes end brushing reminder to develop a brushing habit recommended by a dentist (one suggested the best brushing period)● Premium high-density bristles：Antibacterial and durable, go deep into wisdom teeth, gum gap and quickly clean dental plaques ● IPX6 full body waterproof level for direct washing● Approximately 30 days duration(Twice a day, 2 minutes each time),So never worry about a charger when you TRAVEL● High-Efficiency Cleaning 4 Mode● Blue light :Whiten-For Removing surface stains.Green light :Clean-For Daily Clean.Blue light :Polish -For Brightening And Polishing Teeth.Green Flash:Massage-For Gently Massage