Two multiples with one 1/4 jack socket and two 3.5mm jack sockets each, upper multiple is wired monophonic, lower is wired stereophonic.

For more detailed information please look at the English user's guide: A181_man.pdf

Breite/Width: 4 TE / 4 HP / 20.0 mm
Tiefe/Depth: 30 mm (gemessen ab der Rückseite der Frontplatte / measured from the rear side of the front panel)
Strombedarf/Current: 0 mA