Most people now have USB 5v chargers lying around or will just leave the micro USB cable permanently attached to their PC/laptop.
My only minor gripe with that is making sure to remember to put it on the right side up.
Anyway, I’m loving mine , instruction manual is vague in parts, like is low and high volume setting the same as low and high game and how to access high gain, which I think is what it is. I managed to find a reviewer who explained how to do it, get to .ax vol then press volume + again and the menu button then turns white and stays white.
Crossfeed seems to be very subtle and I like the EQ, the menus are easy tool 10 mins to get used to it.
Really nice thing and lovely with Hifiman Edition XS.
Ps I’ve no idea what the colours relate to, someone has done a chart which doesn’t make sense but doesn’t matter as I seem to like double green with white high setting.