Looking to sell my loop pedal, decided to go a different direction with looping. I’ve reset the firmware recently and will test it again before sale, but it’s worked since the last time I used it. Has some dual lock on the bottom.

The second switch lets you apply fix to the loop layers, like reverse, 1/2 speed, and stop. It lets you loop over many times. Takes 9V / 100mA power - I think these units can be finicky and work best on their own power supply.