Slim handle, easy to hold. Great clean made fun! Clean your teeth better than with a manual brush and make brushing fun! Enjoy all the different designs! 2x Energizer inside. 1. Small oscillating head with extra soft bristles: Cleans teeth and gently sweeps away plaque. 2. Easy on/off buttons. 3. 2 replaceable AAA alkaline batteries. Do not install batteries backwards, charge, put in fire or mix with other battery types. may explode or leak causing injury. Replace all batteries at the same time. 4. Slim handle. Brush lays flat for easy toothpaste application. Discover fun brushing tips and games at www.Colgate.com/kids. www.Colgate.com. Made in China.