Specifications Charging Port Micro USBWorking Voltage 5VWorking Gear 5 GearsRated Current 1AWaterproof Level IPX7Battery Capacity 800mahFeatures Efficient and Effective Removes dental calculus and stains effectively improving oral health Safe and Gentle Made of high quality materials it is safe and gentle on teeth and gums Easy to Use One button operation and compact design make it easy to use at home or while traveling Multiple Intensity Levels Choose from different intensity levels to suit your comfort and needs USB Rechargeable Rechargeable design allows for convenient use and eliminates the need for batteries Package includes 1 X Dental Calculus Remover1 X USB Cable1 X Toothbrush Head1 X Dental Mirror1 X Flat Head1 X Ponited Head1 X User Manual