Bristles that are extra soft for young mouths The lifespan of a rechargeable battery is six days. The Disney Magic Timer App 2D is compatible. Cleaning Procedure: 7,600 revolutions per minute Handle that is waterproof: Made to be used in the restroom Integrated 2-minute timer: assists you in brushing for the two minutes that the dentist recommends. One Mode of Cleaning: Daily Clean Contents: 1 toothbrush handle, 1 extra-soft toothbrush head, 1 travel case, and 1 2-pin plug charger