Power up to a better clean with the Oral-B Pro Battery battery-powered toothbrush. Your teeth and gums will feel pampered because you are removing more plaque than a regular manual toothbrush each time you brush. --Battery powered toothbrush. --Helps to remove more plaque vs a manual toothbrush. --Brush head replacement indicator: bristles go from green to yellow based on individual usages reminding you when to change. to keep 100% cleaning efficacy. --Content : 1 toothbrush handle, 2 batteries. Hazards and Cautions: Periodically check the entire product/cords/accessories for damage. A damaged or non-functioning unit should no longer be used. If the product/ cords/accessories are damaged, take it to an Oral-B Service Centre. Do not modify or repair the product. This may cause fire, electric shock or injury. Usage by children under age 3 is not recommended. Toothbrushes can be used by children and persons with reduced physical, sensory or mental capabilities.