Come and see our amazing products. It is built in 450mAh lithium-ion battery, fast recharged via USB-C port. It takes about 1 hours to get full charged, about 1.4 hours uses for one fully charge. You don't have to worry about using it even if you are traveling.Put the toothbrushes in the box, close the lid, the lamp will work about 5 mins, then automatically turn off after completion,The water on the toothbrush will be blown dry by the internal fan to keep the toothbrush dry.Small size and lightweight, about half of your hand, this toothbrush case is very exquisite, compact and portable, it's easy to carry, especially suitable for business trips, camping, holiday travel, also suitable for home or office use.At the same time, it can sterilize your small jewelry or earphones.Customized design is available. Pls confirm further with us if any query about packing info, inventory status and time schedule.