The Oral-B Vitality Precision Clean rechargeable toothbrush delivers a thorough and effective clean. Pulsating to break up plaque, it rotates 7600 times every minute to sweep away up to twice as much plaque as a manual toothbrush. It features a 2 minute timer to assist effective brushing and comes with 1 Precision Clean interchangeable head. The Oral-B Vitality Precision Clean rechargeable toothbrush is also compatible with all Oral-B oscillating/rotating interchangeable toothbrush heads. Each Oral-B toothbrush head comes with a coloured ring that fits on to the base of the replacement brush head. These rings come in a variety of colours allowing you to distinguish between different people's brush heads if using the same toothbrush handle.