Headphones

SRC bypass only affects USB audio output; the 3.5mm should be fine. The only problem is that Android doesn't auto switch bit rate, so you'd have to manually do it for each session (presumably using a3rd party app, in most cases). On a player of this type, it's doubtful that you would notice the difference anyway.

Does UAPP auto switch these days? I used it a few years ago, but tend to use my ios devices now (which do auto switch by default).