Nice Sound When it Works; Terrible Interface

The description says it works with iOS 6.0 and later, but it will not open on my older iPod Touch with iOS 6.1.6. On my newer iPod Touch, with iOS 8.3, it will open but sometimes crashes.

The user interface for selecting crossfeed and EQ options is fine, but the setup for playing music, fast forwarding, adjusting volume, and the like is just ridiculous; its awkward and counterintuitive, and its very easy to accidentally stop the song youre listening to or jump ahead or backward within it. (Instead of a horizontal progress bar, theres a big stupid circle in the middle of your screen; its far too easy to touch it by mistake, whether youre trying to access another function or just holding the device.)

Its a shame, because when I can get it to work, the crossfeed and EQ functions really do make it possible to get much more satisfying sound from the various headphones, earphones, and earbuds Ive used with it.

Buddy Bolden about CanOpener — for Headphones