Sonicare dynamic action effectively reaches deep between teeth and along the gum line. Safe for use with braces and dental restorations. Recommended brand of power toothbrushes by dental professionals. Can improve gum health in two weeks. Fits standard two-pin shaver socket (adapter required for three pin socket). Longer battery - up to three weeks use on a single full charge and 2 minute Quadpacer interval timer encourages thorough brushing. This product comes with a 2-pin UK plug.