?About us?-This sonic electric toothbrushes come with 4 brush head, 1 USB cable. If you met any problems about this toothbrush electric, please feel free to contact us, you could click "Contact seller" , Our customer service team will always be there for you to solve the issues. ?Smart Timer? - This kids toothbrushes build in 2 min smart timer reminder. Professional dental recommendations of 2 minutes brushing time with 30 seconds interval reminders are included to ensure the proper gum health. Each pause is to remind you to change brushing area for an effective clean. Keep 2 min daily brushing to help you or your kids establish good brushing habits and improve oral health. ?Battery Life? - 4 hours fully charging could use more than 45 days. Long battery life and light weight design make this electric toothbrushes adults more convenient and portable. This toothbrush comes with a USB charging cable for charging anywhere, could compatible with USB Port, Power bank, Computer and other power source. Suit for travel use. ?6 Setting? - We upgrade this kids electric toothbrushes with 6 Modes: White, Clean, Milder, Polish, Massage and Sensitive. Upgraded a new milder mode, gentle vibration to improve kids brushing experience, also suit for special situation that adults needs milder vibration. Polish Mode would brighten your teeth through the strong strokes. Adults or kids could find the mode suit for the daily cleans. ?SONIC Tech?- The electric toothbrush equipped with quiet Motor to generate 28,000 STROKES per minute, to drive the fluid dissolve deep tooth dirt effectively. Our electric toothbrush also come with “W” shape toothbrush heads to improve the cleans performance. 7 DAYS to Whiten teeth & 14 DAYS for Healthier Teeth. Suitable for adults and kids (6Y+).