5" phone to this phone thats 6. I actually have two pairs of cans and yes, the amp drives them both at insanely high levels at the same time with a cable splitter ! £90 wasted. Five stars from me. Vocals are extremely clear, and highs are great. Would be great if the charging cord was a bit longer. The audio is clear, and the sound actually has some bass to it. The mic picked up sound great and you can be heard easily, but the downside is that it also picks up background noise a little more as well. Switching from Bluetooth to wired and back may cause a few minor connection problems, this could work better. attaching the center piece which cradles the wine to the end pieces which hold that cradle up would be slightly challenging if you do this alone.