Intelligent - soft or medium.
* 2 minute timer -- toothbrush beeps once and green light flashes once every 30 sec. to 2 minutes.
* 90 Day wear meter - after 180 uses the light changes to red to indicate time to check bristle wear. Depressing the button for 5 seconds resets the meter to zero.
* Replaceable heads - reduces environmental impact.
* Radial bristling - first toothbrush in the world to have it. Makes brushing easier and more effective.
* Right or left hand option -- reversible handle
* 3,080 bristles - available in soft or medium.
* The tiny batteries will last for over 6 heads worth of regular use -- we recommend that users return the handle to us for recycling.