These brush heads remove up to 7x more plaque than a manual toothbrush, Protect every child’s teeth，keep your child's teeth free of bacteria at night. This toothbrush is suitable for children aged 2-12. Built in 2 minutes tooth brushing timer encourages you to achieve the dentist-recommended time, Pause every 30 seconds, always let you know when to replace brushing area for an effective clean. Automatic shutdown 2 minutes later. For optimal result, replace your brush head every 3 months as recommended by the American dental association. Each toothbrush head equipped with a hygienic travel cap Cute animal design, Let your children fall in love with brush their teeth. Unique small brush head with curved soft bristles, comfortable and efficient, perfect for children's gums and small mouth. IPX7 waterproof tooth brush, no worry short battery life, you can use it at bath and shower.