Hello Sonicare. Sonic technology combined with our brush head gently removes stains - for naturally white teeth every time you brush. For white teeth every time you brush The Sonicare electric toothbrush with advanced sonic technology gently removes stains for naturally whiter teeth with every brush. Protects your gums The integrated pressure sensor automatically detects the pressure you apply, warns you and automatically reduces the vibration of the toothbrush to protect your gums. The toothbrush emits a pulsating sound to reduce the pressure. 7 out of 10 people found that this feature helped them have a better brushing experience. Slim travel case You can store your toothbrush hygienically in the high-quality travel case, and with our compact USB charging station, you'll never run out of power on the go. You can use the toothbrush regularly for two weeks on a single charge, but the charger is just the ticket for longer trips.