Purui BR-A1 6-gear USB rechargeable washable toothbrush household soft bristle brush Features: Long battery Ilife, supported by USB charging , safe and easy auto shut off full charge , any power source。Long life, fast charging in 6 hours 2 minute timing, 30 second change reminder, so that brushing teeth in the scientific timing Tooth-waved bristles made with nylon , to suit teeth topography for through cleaning of gums and hard to areas。 Gently and effectively reaches between teeth and along the gumline The whole body is, and the body can withstand water washing and blistering. The base is IXP7, which can be put into water for a short without affecting its performance. Random hidden charging line at the bottom, gold-plated button Powerful cleaning up to 33000 strokes per minute Product details: USB rechargeable toothbrush 3.7V 500mA lithium battery Maximum 33000HZ/minute vibration frequency With working/charging indicator IPX7 grade 2 minute working timing function, 30 second reminder function 6 gears, gear memory function The endurance is about 25 days (2 times a day, 2 minutes each time) Product list: 1x Manual+1x USB charging cable+4x brush+1x brush body