OEM Number D20 481BB Six(6) station intercom box with power cord only is used in applications for fast food operations, security guard units, dry cleaners, liquor stores, convenience stores and more. The intercom features touch panel switches, indicator lights for power-on, standby, presence alert, talk and listen, internal microphone for clear voice reproduction. Typical application; security windows, security gates or kiosk, convenient order filling, pump island or car wash. Power-14 VAC @ 12 VA provided by a 120 VAC 50/60 Hz plug-in transformer, 5 watts - talk channel, 2.5 watts - listen channel. 5 in D x 3 in H x 8 in W (13cm x 8cm x 21cm) overall size. Compatible with wired systems.