Volume control with 2x 3.5mm stereo sockets. Used for adding a volume control to MAME and jukebox cabinets. Simply use a 3.5mm stereo lead from PC to this board, then plug your powered 2.0 or 2.1 speaker set in. Eliminates the hassle of wiring up fiddly volume pots. Supplied complete with black knob, mounting washer and nut.