The Oral-B Vitality 170 CrossAction Rechargeable Electric Toothbrush offers superior clinically tested cleaning than a traditional manual toothbrush. CrossAction replacement head wraps each individual tooth with 16 degree angled bristles, while the two-dimensional cleaning action applies swing and rotation movements to better remove plaque than a traditional manual toothbrush. The timer on the handle helps brush your teeth for 2 minutes, as recommended by dentists. In addition, this toothbrush is distributed by Oral-B, the most widely used toothbrush brand by dentists in the world. Compatible with the following replacement heads: CrossAction, 3D White, Sensi Ultrathin, Sensitive Clean, Precision Clean, Floss Action, TriZone, Dual Clean, Power Tip and Ortho.