Bose QC15/Ufly mic TSO'd for Skywest?

Is this poor mans ANR combo required to be TSO'd to use with SKywest. I wonder if some airlines require that or not. Uflymic will TSO it for a small cost but I would rather not pay if I do not have to.

Also, how many of you use this setup? Do you like it? How does it compare to the A20 or older Bose ANR headsets?

Thanks