Water filtration: On the bottom of one side of the box, we made some holes. When you put the box on the hodler, the water on the toothbrush will be retained through these holes to keep the toothbrush dry, easy to carry. Holder: It's not only for your travel use, but also for home use. We have prepared a holder for you. You can put it on the bathroom shelf or on the washing platform. Removable inner box: Wanna clean the cover after using it several times? Yes, products with batteries cannot be rinsed directly in water, so we have designed a detachable inner box, you can take it out to rinse, your toothbrush is kept clean at all times to avoid bacterial growth. Working automatic: When it is fully charged, you only need to put in your toothbrush and close the lid, it will automatically start to work for 5 minutes each time, when you open the box, it will automatically stop, It's very safe even for children. Long battery life: It works for five minutes each time, and the power-saving lamp beads enable it to be used for 30 times. If you use it twice a day, you only need to charge it once in 15 days. It is very convenient. You don’t have to worry about using it even if you are traveling.