Power up to a better clean with the Oral-B Pro 100 CrossAction Battery Toothbrush featuring perfectly angled bristles to get deep between teeth. Improve your oral health by removing more plaque than a regular manual toothbrush with each use. 2 AA Batteries included. Replace brush head every 3 months. Compatible with other Oral-B Brush Heads: CrossAction, Sensitive Gum Care, FlossAction, 3D White.