1. Just plug it into the base. It will automatically power off when it is fully charged. Just unplug the base without flushing. It is best to use a normal electric toothbrush for 16 hours on a charge for the first time, and a full 16 hours is basically enough to be used twice a day for a week. It is recommended to change the brush head regularly (every 3 months), so that our mouth can be more clean. 2, plug into the base, after a few hours to see, it should be able to rush, this is wireless charging technology, full of automatic power off, do not rush the plug out of the base. Electric toothbrush, brush head generally 3 months a change it, do not bother to use with mouthwash, to maintain oral health, each brushing time please keep at about two minutes