This Pedal is currently available.
Here we have a true bypass looper pedal with an AB input selector switch, tuner mute and a switchable buffer. A Swiss army looper!
The pedal is powered via a Boss style 2.1mm 9v (negative ground) DC socket.
https://www.brightonion.co.uk/ab-pedal-with-loop-buffer-and-tuner-mute/