· Superior whitening: clinically proven to remove up to 100 percent more stains in 7 days than a manual toothbrush· Special design: clinically proven to prevent new stains from forming with regular use· Gentle & Effective: soft, densely packed bristles remove surface stains and whiten your teeth, while gently protecting your gums· No guessing: built in brush head Replacement reminder lets you know when to replace your brush head, so you don’t have to remember· Better together: get the most from any Sonicare click on handle with genuine Sonicare brush heads that are designed to work together and provide optimal performance