I've heard the Bose CD player before...and I liked it so I decided to give these earphones a whirl. WOW! The sound is truly amazing! Crystal clear. I used these while working on my album (monitors are still best of course). But I use them mostly at church for my in ears. (I play drums & guitar) They don't isolate the other sounds but they still allow me to hear what I need to hear. Bose isolating ear phones will probably be next on my list! And S/O to my "Guy" Alex Morales for always treating me w/ VIP status! Hands down, the BEST CUSTOMER SERVICE!