Drying functions To prevent bacterial growth. which helps you avoid brush dust, perfect for everyday use and travel use. Our automatic toothbrush is your professional daily dentist that promotes healthy gums and teeth with multiple function modes as follows: 1. Strong mode for powerful tooth brushing; 2. Medium mode for comfortable tooth brushing; 3. Massage mode for gum massage. When charging, the lights will turn on and the built-in fan will work, the toothbrush dries and cleans at the same time, easy to keep hygienic. Noticed : "" pointing to the "cartoon face" of the toothbrush is the correct charging method The water-resistant toothbrush can be rinsed directly with water, without electric leak. Also, common gear memory function, no need to re-adjust when starting, convenient and practical. Cartoon design makes this cute automatic toothbrush attractive for all kids , which reduces children's resistance to brushing and increases children's interest in brushing actively. 45 seconds timing design, kids can finish brushing their teeth in 4 5 seconds, simple and convenient.