With the Philips Sonicare ProtectiveClean 5100 HX6851/34, you get 2 toothbrushes with 2 travel pouches. This way, you can brush your teeth with your roommate, family member, or partner. Brush inflamed gums and sensitive teeth with the massage mode. Want to work towards whiter teeth and put an end to dental plaque? Use the Optimal White brush attachment and the mode for whiter teeth. The pressure sensor indicates when you're applying too much pressure with a vibration. This way, you prevent yourself from damaging your teeth and games. Thanks to the built-in chip, you get a reminder when it's time to replace your brush attachment. That's useful, because you can be sure you're not brushing your teeth with a worn-out brush attachment. You can safely take the toothbrushes with you on the go thanks to the travel pouch.