"Clinically proven premium 3D cleaner vibrates and pulsates, separating and removing plaque along the gum line 300% more than a regular manual toothbrush "," Pressure sensor stops pulsating motion if you brush too hard, handle timer helps you brush for 2 minutes ", "1 mode, daily cleaning, rotation to break down and remove plaque ". Bristle type: Soft ", "Compatible with Oral-B brush heads for a wide range of Oral Care needs :CrossAction, FlossAction, Precision Clean, 3D White, Sensitive Gum Care, Deep Sweep, Dual Clean. Not suitable for iO brush heads."