Sorry, no understanding of the Braun Oral-B toothbrushes developers. How does that work, in 2013, all Oral-B toothbrushes matter what price range, in Germany only Power supply / charger parts of 220-240 volts delivered. Even with Oral-B in Germany is not a power supply with 10-220 Volt subsequently bought. How could make the Braun Oral-B managers who regularly when Mama (USA) to the meeting of the Atlantic fly without electric toothbrush about ... Incidentally, in the model in the years 2009 - 2011 the power supplies were still supplied with voltage of 110-220 !!!!!!!!!