Bticino 334262 Intercom 1+N-universal SPRINT without privacy lock

UNIVERSAL HOUSE STATION MULTI-WIRE Universal audio house station for analogue intercom systems (4+n, 1+n), electronic call or buzzer can be configured using a jumper, call volume switch can be set to 3 levels, 1 door opener button, handset cable can be plugged in, installation with enclosed screws and dowels on the switch box, colour: white