Summary: got these as a replacement for an eol product. extra were returned
i don't know why bose made the remote versions, cause these don't really sound good when using smartphones, can't use them outdoor either
the open back design is my favorite, i just can't live with the enclosed sound of...
Pros: almost no sibilance, open-back, non-tiring sound
Cons: not easy to drive, bad with warm sounding amp