Herr Meyer5 years ago000Do I understand this correctly? With each brush head I dispose of an RFID transponder? Show in original language (German)shorten5 years ago • purchased this product+110purchased this productI haven't looked into it in detail, but this is probably the case, as the heads are uniquely identified and the machine recognises when my head or my wife's head has reached its "maximum useful life".Show in original language (German)Comment