Dr Sonic Electric ToothBrush Y1 Rechargeable three Models Waterproof Automatic Oral Cleaning Teeth with Brush HeadsFeatures:- Superfine delicate bristles, Deep Cleaning- Suitable for 45° Bass Method- GMSoft Sonic Motor- Charge for 4 hours and brush your tooth for 30 days- 3 cleaning mode- IPX7 waterproofParameters:Name: DR Sonic Electric Toothbrush Y1Product model: DR Y1Rated voltage: 3 rating: IPX7Rated power: 1 time: about 30 daysRated input: 5V/0