ARRANGER-SEQUENCER MODULE The SQ-1 is a compact 2 x 8-step step sequencer. Its variety of connection jacks allows you to connect to the MS-20 and a variety of different synthesizers. Vintage analog synths or recent compact synths can be controlled from this unit. Power: Two AA Batteries or USB power. Dimensions: 93 x 84 x 63 mm. Weight: 641 g. Items Included: Two AA Batteries, mini DIN cable. Options: Cable Patch MS-CABLE-18.