On Mar 5, 7:53 pm, "Kyle Boatright" wrote:
One thing to be aware of if you plan on using it in flight in conjunction
with your headsets. You need a $10 push to talk switch if you want to use
your headset's microphone.

At least on the A24 that is not true; I just tested to make sure.
With a headset (and its mic) connected via the adapter, the behaviour
is the same as it is without a headset attached - you push the PTT key
on the unit to transmit. I don't own the external PTT switch but it
would appear to just be in parallel with the builtin one - possibly
more convenient but not required.

todd.