AA Battery used an older Bluetooth transmitter, with its high latency, as a delay in his signal chain. I really like the look of that Maker Hart Mixer, but I think I prefer this model from Maker Hart.
A little experiment: could the delay of older bluetooth audio transmission protocols be useful for something? For sure! You can see the BT Transmitter connected to the headphone output and the BT reciever to channel 1. Any kind of splitters would also work, but with a mixer you have more control. Also a huge bonus is the EQ section coloring the Delay. The big downside is of course that the delay time is fixed (fluctuates even a bit). Nevertheless fun! Teenage Engineering Pocket Operator 24 Office on dub duty again! #jamuary
Ironically, the great Mixer by Maker Hart already has an optional bluetooth reciever on channel 1, but it isn't loud enough to go into much feedback.