Investigation of the transmitter determined: visual inspection of all plugs, cables, sockets and housings of the transmitter, audio cable and power supply were undamaged.Output voltage of the usb plug measured 5.165v/dc.No higher voltage measured.Transmitter was switched on and the blue led was blinking correctly.Transmitter was connected to the power supply and the red led indicated correct charging process.The transmitter was paired via bluetooth with a rcu.The blue led blinked and after a few seconds the pairing was done correctly.An audio signal was delivered via an audio cable to the bluetooth transmitter.The audio signal was audible in a connected hearing aid.No evidence was found for causing an electric shock.It was not possible to duplicate the complaint.Further evaluation of the specifications indicates the transmitter does not have the potential to send out electrical energy to a patient when touching the transmitter.The internal voltage is a maximum 5v when connected to a charger, and 4.2v when a battery is used.An electrostatic shock is possible only if the device is connected to another device (e.G., tv set) where a connection to a power supply net exists.If an electrostatically charged person touches the transmitter, the energy from the person may be shortcutted via the tv cable to the power supply net.Although the transmitter is not affected, the person may get a non-hazardous electrostatic shock the same way as they would when getting close to the water tap or other conducting appliance.
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