Rechargeable: Charge via USB cable (included) for 15 days of use (details below). Timing reminders: Gives a timing reminder to keep you brushing for two full minutes and move zones every 30 seconds. Five functions: Different modes include cleaning, polishing, whitening, gum care and sensitivity. Sonic vibration technology: Features high-frequency vibration that helps with difficult areas such as between the teeth and gum line. Colour options: Choose from white, black, pink or blue. Electric toothbrush: Get a rechargeable electric toothbrush. | Rechargeable Electric Toothbrush - Black