Not sure. I plugged my iems in, turned on the screen, then it froze and screen went blank. Wouldn't play after that, screen wouldn't return on. No response to try to turn off by holding power button on. No response ro plugging in. Not sure what happened.
Dx240 is definitely less refined. Like I said, took a while to get it up and running and it's a little buggy with hiby music app. I need to compare sound a bit more with m11 plus and m6u. The 240 is definitely lighter, which makes it more portable. It's in my pocket now st the gym wirh my z1r and I'm really enjoying it. Been using the m6u at the gym and have enjoyed that as well. I'm still tbd on which I prefer.