I’ve used the DC ProX ANR on the 73 and 717. Works equally well with an ear on or off. ANR is fine even on the older -800’s. Allegedly (Of course I’ve never tried it 🤷🏻‍♂️), you can use the Bluetooth to listen to tunes or company provided e-brief/WATRS videos on those longer flights. Had the Clarity Aloft years ago. After about a year or so my ear canals became very sensitive to having plugs stuffed in there for hours at a time.