Unless you already have your own QC2s, I think you mean QC15. The 2s haven't been sold for a number of years. I've had both the UFM/QC15 and the Telex. UFM probably ranks in the top 10 bang for buck purchases I've ever made. Works great in the cockpit as well as deadheading. I wonder how much less hearing I would have lost had these been available 20 years ago.

Each have a couple of minor annoyances. The Telex doesn't work in the right seat of 3-5 -800s. They've been that way since DAL bought them. I doubt they will ever be "fixed". The UFM mike only mounts on the left ear cup.

Other than carrying a spare AAA for the Bose, the battery is really not much of an issue.

Having said all this, the QC15 is an end of life product also. They're still available [certainly used], but becoming more scarce. Apparently the plan is for UFM is to adapt to the QC25. I don't think its a done deal yet but should be close. The decision: go with QC15 now or wait for development/TSO on the QC25.

Bottom line: UFM/Bose

FWIW: we get a 10% Delta discount through Bose but you may find a better deal on a closeout QC15.

Bob
Just a happy customer