The Sony EC-1.
5CP Microphone Cable is an XLR adapter cable for WL-800 Series and DWX Series transmitters.
It can also work as an SMC9-4P connector and features a maximum cable length of up to 1.
5 metres.
You can connect a microphone, with a 3-pin XLR output connector, to a WRT-822A/860A/822B transmitter or any BC-series transmitter.