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 and EFFECTIVE: Medium, 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