MICRO VIBRATIONS AND TAPERED BRISTLES - Think of the One as a powered version of your manual toothbrush. Micro vibrations and contoured bristles gently clean and polish your teeth at the touch of a button. COLORFUL DESIGN AND SLEEK TRAVEL CASE – The brush heads match colorful handle for a super sleek look. Like your very own travel companion. Wherever you go, this One goes with you. Its sleek, lightweight and a portable case for when you’re on the move. 2 MINUTE TIMER WITH 30 SECONDS NOTIFICATIONS- Sometimes, we all need a little guidance. The One buzzes every 30 seconds encouraging you to move on to the next part of your mouth. A longer buzz at 2 minutes lets you know when the job is done. 3 MONTH BATTERY LIFE - With 3 AAA Battery’s included. Brush with the One for 90 days on a single AAA battery. That's three months of whiter, brighter smiling. A COLOR FOR EVERY STYLE - The Brush is Compatible only with Philips One by Sonicare Handles. Comes with 2 extra Brush heads to change whenever you feel like