Plug the adapter into the iPhone (or other device) headset jack and then plug the locking male connector to your wireless microphone receiver. The iPhone will recognize that an external mic is connected and turn its internal mic off allowing you to record using the external microphone. This adapter works with all audio/video recording apps and other functions just as the internal mic would.
Plug standard headphones into the headphone jack to listen to recordings. The headphone jack normally works for listening to recorded audio only and not to monitor the microphone input while recording, unless you use a recording app that has a microphone monitoring feature.Q: Why can't I use the headphones to hear (monitor) the microphone while recording?
A: The microphone signal is too weak to be heard in the headphones without being amplified. The mic signal would need to be amplified by the software (App) and played back through the headphones live for you to be able to hear while you are recording. Most recording apps, including the built-in recording apps, do not have a monitoring feature so the headphones will only work for playback of recordings with these apps. If you use a recording app with monitoring, like StudioMini or Fire by AudioFile, then you will be able to monitor while recording.