Tips: It is recommended to replace the brush head every three months. ---You can check the related information on the box, get 3 replacement brush heads --- Or buy other brush head sets at the COSLUS store to better experience this electric toothbrush. ?90 Days Long Endurance: This rechargeable kids electric toothbrush lasts up to 90 days after 2.5 hours of wireless charging, more convenient and faster. It highly reduces the hassle of frequent charging and battery replacement, easy to use at home and on the go. In addition, the average lifespan of our electric toothbrush is approximately 3 years, which is double the lifespan compared to other electric toothbrush. Designed For Kids' Oral Development: The unique caterpillar-shaped silicone handle is comfortable and non-slip, more suitable for children's small hands. And widened tongue brush head is made of food-grade silicone to massage kids' tongue while cleaning effectively. In addition, the lock-type design can better prevent brush head from falling off, allowing kids to brush more safely independently. With IPX7 waterproof design, your children can directly rinse and soak it with water after brushing. ✓?GENTLE & EFFECTIVE CLEANING: Created in partnership with thousands of Professionals, COSLUS kids toothbrush is safe, effective and gentle on incoming teeth and sensitive gums. Ultra-low vibration, children will not feel numb when using. What's more, this toothbrush vibrates up to 31000 times/min, 100% more powerful than ordinary electric toothbrushes. And Come with 2 toothbrush heads: 1 soft bristle for sensitive gums, 1 standard bristle for deep cleaning. ?BUILDS HEALTHY BRUSHING HABITS: Based on the professional advice of brushing teeth twice a day for two minutes each time, COSLUS toothbrush sets the smart timer to 2min and lightly vibrates every 30 seconds to remind child to switch to another part of the teeth, thoroughly clean their oral, and develop correct habits. Meanwhile, our toothbrush has 3 cleaning modes with memory function: deep clean, soft clean and massage, you can choose the right mode according to your child's needs. INTERACTIVE FUN BRUSHING: Featuring cute cartoon character design and rainbow LED lights, COSLUS electric toothbrush makes brushing more fun and easier for boys and girls ages 3+. Your children will be rewarded with a star after each successful brushing, which can motivate them to collect all the stars, fall in love with brushing teeth, and enjoy endless fun with cute characters. Studies show that 93% of parents prefer an interactive toothbrush to develop their child's healthy brushing habits.Best Sellers Rank: See Top 100 in Health & Household. Model Name: Kids Sonic Rechargeable Electric Toothbrush. Included Components: Timer, Battery, Charger. Unit Count: 1 Count. Number of Items: 1. Color: 1 - Blue. Item Firmness Description: Soft. Power Source: Magnetic Charger. Special Feature: Brushing Timer. Age Range (Description): Kid. Brand: COSLUS. : B0BB2SPB8C. Manufacturer: COSLUS. Date First Available: August 18, 2022. Batteries: 1 Lithium Ion batteries required. (included). Product Dimensions: 1.18 x 1.18 x 7.68 inches; 4.23 Ounces.