Miditech i2-mini 32 Plus

First of all, when in battery power, it does NOT output any MIDI out the 3.5mm Jack. Not sure if this is an issue with my unit or if it's like this from the factory, but, it completely defeats the purpouse of battery power if you can use it without the USB being plugged in.
The finishing onthe case is something out of a horror movie, so be careful when you grab this thing because the plastic edges are so sharp you can shave with them, and I don't mean here and there, the entire case is razor sharp.
Keybed is spongey but stiff, if you can imagine that. One key in paticular (F#) is stiffer than the others and really hard to press on my unit.
It would also be nice to know what MIDI channel you're in after you change it, because you only get MIDI +/- buttons, no idication of which cnannel you're on, so good luck figguring that out.
Really dissapointed with the purchase.
Cannot state enough how much you shouldn't buy this thing.