Oral-B Complete Battery-Powered Toothbrush features a rotating powerhead that loosens and whisks away plaque from surfaces, gumline and back teeth while CrissCross bristles reach deep between teeth to lift out and sweep away plaque. Brush head contains Soft Bristles. Brush heads should be replaced every 3 months. Compatible with Oral-B Deep Clean, Pro-Health and 3D White replacement heads. AA Battery included.