Moog Mother-32 is a semi-modular mono synthesizer. It has a built in 32 step sequencer with 64 sequence locations. Moog Mother-32 oscillator has pulse and saw tooth waves. There are two Moog ladder filters, low pass and high pass. What comes to the modular part, there are 32 modular patch bays. Mother-32 can be mounted to a Eurorack but works as a desktop synthesizer as well. This product is hand made in The USA.