The Jk Audio Daptor Two Wireless Phone Audio Interface is simply plug Daptor Two into the 2.5 mm headset jack of any wireless cell phone that accepts a third party headset or earpiece. You can now send and receive audio from your mixer or tape recorder through the cell phone. Your cell phone will recognize Daptor Two as a headset which will disable the mic and speaker in the cell phone. Since Daptor Two replaces the headset, you will need to provide a microphone and microphone preamplifier and a headphone amplifier and headphones to allow conversation to continue.