With philips sonicares hx651150 easy clean rechargeable toothbrush youll enjoy a dynamic cleaning action thatgently and effectivelyreaches deep between your teeth and along the gum line the two minute timer helps ensure you stick to the recommended brushing time while the quadpacer interval timerencourages thorough brushing the angled brush head neck is better for reaching your back teeth and if youve never used an ultrasonic toothbrush before theres an easy start program to get use