Wireless microphones for language recording

[phil cash cash]

Dear ILAT,

i recently recieved a request on recording with wireless microphones.  a
language program is interested in making a recording session as
comfortable as possible when recording elder's speech and is looking to
use wireless microphones.  they are also interested in using headset
microphones for more general recording of the language.  they are aware
that you can record to analog and to digital.

please feel free to share if you have any experience in this or
suggestions on microphone brands and particular recording uses.

thanks,
phil cash cash
UofA, ILAT