this is an extremely versatile module (as most of the incredible compact NLC products are)…2 input signals (audio/CV) can be mixed in various forms to create  CV patterns and frequency division…great for creating polyrhythms and in general weird rhythmic structures…works also somewhat like a mini sequencer, as well as an envelope follower and a ring modulator that provides sub-harmonics…btw, SMD soldering is NOT that scary!!!…much faster process than stuffing resistors, etc…through holes!