An electrode group is provided in a portable terminal carried by a human body for transmitting a transmission signal to the human body functioning as a transmission medium. A system run is selected in a computer drawing application. The operator panel that controls operation or displays a status of the electronic device is attached to a mounting element. Consequently, the granularity of the circuit configuration can be rendered variable, which allows improvement in flexibility when configuring a function. By providing the pressure gauge, an operator may determine whether the positioning of the treatment head is correct. 3, with struvite purities exceeding 90%.