ADA Accepted Brush Up! It's a Chore No MoreSpinbrush™ Battery Powered Toothbrush comes with:1 recyclable Duracell AA alkaline battery. Includes AAA batteries. Toothbrush head is not replaceable. Batteries are replaceable. How to use the product: Slide the switch up to activate the brush. While brushing your teeth, place the brush head on the surface of your teeth/gum and gently sweep back and forth without pressing too hard for about 2 minutes. AAA batteries included. Use only AAA alkaline batteries. Do not use old and new batteries together. Do not use standard alkaline (carbon-zinc) batteries and rechargeable (nickel-cadmium) batteries together. Caution: Children under 3 years of age should use under adult supervision. Do not submerge in water as there is a risk of damage. CAUTION: Replace your toothbrush every 3 months. Otherwise, the toothbrush head may break and cause injury. Wash your toothbrush head thoroughly after each use. Do not use your toothbrush if it is damaged or loose.