Means are provided for wiring the device to {HEAD ~ the microphone input} of {TAIL ~ the mobile phone set} 
Means are provided for wiring the device to { HEAD ~ the microphone input } of { TAIL ~ the mobile phone set }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL