The panasonic ew dl82 sonic vibration rechargeable electric toothbrush features a unique triple edged stain care brush which is clinically proven to remove stains adhering to teeth you can take care of stains through daily brushing without the need for special care and get your naturally white teeth back again integrated brush timer meaning toothbrush pauses once every 30 seconds and twice after 2 minutes to indicate recommended brush time along with a soft start function toothbrush power