Shipping is free on orders over $35! About this item: - Removes up to seven times more plaque vs a manual toothbrush - Pressure sensor protects teeth and gums from excess brushing pressure - BrushSync alerts you when it’s time to change your brush head - Quadpacer encourages brushing each quadrant of the mouth - Smartimer help ensure dental professional recommended 2 minute brushing time - Battery charge indicator light - 2 week lithium ion battery life