Performance:Sufficient power drive small driving wheel makes the toothbrush head to the fastest speed rotation， so that we can strengthen the function of wash and massage the gums， received good results.Material:1. Brush: the United States dupont nylon yarn， won't cause damage to the gums.2. Handle: ABS plastic， light reasonable exterior design brush for the human body， and has the reliable water protection processing functions.Power supply requirements: charging power supply voltage: AC200V 50 hz.DC2.4 VOperation: 1. In order to prevent the fly out of toothbrush， toothpaste before press "start" button， please put the toothbrush head in the mouth， the button below to shut down. (note: hold down the "start" button， until hear voice).2. Start from the outside， keep toothbrush parallel to the teeth， brush one by one.3. Then brush the teeth and internal.4. The final comprehensive scrub worn teeth.Clean and maintain:1. After completing scrubbing， turn off the power supply， flush with warm water wash hair and handle.2. Regularly remove the toothbrush head and wash its internal and external， and put it in warm water， must check the battery cover is sealed to soak it in water， otherwise please don't flush;Regularly check whether the wire is damaged. Brush clean dust box can be placed in charge base. Package Includes:1 x toothbrush handle4 x toothbrush head1 x UL/EU Inductive charging base1 x instructions