Designed and recommended by dentists for children ages 6+, the oral-b io kids electric toothbrush delivers a gentle and effective clean. It features 3 brushing modes, including a unique kid-friendly sensitive mode, to be effective against cavities while being gentle on gums. It removes more plaque than a regular manual toothbrush. It also includes a 2-minute music timer and provides access to the disney magic app to teach your child healthy habits for life with disney. - our best technology for kids ages 6+ tough on cavities, gentle on gums, designed and approved by dentists - cleaner teeth in hard-to-reach areas, where cavities start - gentle on teething and gums - 3 brushing modes: extra sensitive, sensitive & daily clean - automatically reduces speed if over-brushing is done to protect sensitive gums - 2-minute music timer rewards kids when they brush for the dentist-recommended time and works with the free Disney Magic Timer app - long-lasting battery indicates low charge so you never run out of battery