Capt Homesick makes the important point. DC is the name. I find them very hard on the ears. You can pick up a “similar” set for much less money, which would be fine for learning. You can then go for the Bose and keep the low cost set for a spare.
The best value is probably Harry M’s own at 85 ish. I have a set for aerobatics and they are very good for the money. Do not go for anything unless you have used them in anger first.
Rod1