"The Oral-B Pro-Health electric toothbrush achieves deep cleaning of plaque and healthier gums compared to ordinary manual toothbrushes ", "Cross Action brush head uses a round brush head to clean tooth by tooth." , "Stable battery performance. Includes 2 AA batteries ", "compatible with other Oral-B brush heads :CrossAction, Sensitive Gum Care, FlossAction, 3D White", "Oral-B is the world's dentists recommended toothbrush brand ", "The battery needs to be replaced within 6-9 months."