The OP-Z can be a pretty complete sampler, and even has a built-in microphone that is surprisingly good. Holding the OP-Z with the mic facing upwards enables it, and the “ON” button un-mutes it. It can be sent to up to two effects processors, and the record/mix level is adjustable. It’s also possible to turn the mic on even when the OP-Z is not held vertically, and the mic can be mixed with the realtime performance. It’s also possible to use a mono input from another device, like a Pocket Operator, or to use an external mic.