borui br-z1 usb wireless ultrasonic electric toothbrush oral hygiene rechargeable sonic automatic to - green

powerful cleaning as just get off dentist's chair with 3,1000 micro-brush per minute. remove up to 100% more plaques and stains, compared with a regular manual toothbrush. enjoy clean and healthy teeth in 7 days and improve gum and oral health in 14 days. 2 minutes smart timer with interval pause reminding each 30 seconds to encourage dentist-recommended brushing habit. waterproof to be used at bath and shower.