Medical, in particular dental, system having at least one first transmitting and/or receiving unit and at least one second transmitting and/or receiving unit, wherein the at least two transmitting and/or receiving units are designed to capacitively couple electrical signals into and/or out of a human body, with the result that an electrical path for transmitting electrical signals can be produced between the at least one first transmitting and/or receiving unit and the at least one second transmitting and/or receiving unit, which path extends through the human body of the user and/or of the person to be treated in order to transmit data between the at least two transmitting and/or receiving units.
