You will remember me, I made several posts because I'm looking for something similar to a "MINI-X32" Mixer-Desk
I asked for midi implementation for focusrite or other audio interface.
Now I have unexpectedly found my perfect solution for two use cases:

- mobile powerless mixer system with battery and Battery-Powered Microphones and Speakers
- digital small mixer in Theatre with fader and possibility for emergency intervention (contrary to XAir18)
And I really wanted to be able to control it with SQS.
Well I found it: Behringer Flow8, It's awesome, it's mobile (5V PowerPack)
I can send the audio cues to 4 different speakers:
Main / L
Main / R
Monitor 1
Monitor 2
It is absolutely perfect for my tasks.
And it understands MIDI SEND via USB

I tested it with SQS.: Especially my favorite MUTE on/off
It works great.
Behringer gives an extra MIDI control list, I've attached this list for you (PDF/rar)
If you have the opportunity, please enter a device for the device library with these commands, that would be very nice.
Flow8 is sure to find a large user community.
It offers an incredible number of possibilities, the APP is available for MAC and Android, easy and practical to use
and Behringer is constantly making new features
I'm incredibly flashed right now, my big wish has finally come true....
Many Thanks to you Erwin