`-Rugged all-steel surface-mounted enclosure; off-white finish
Built-in 1W amplifier
Full range 8" cone speaker for excellent intelligibility
Built-in volume control with detachable knob
Available as flat-fronted (AMBSQ1) or with 12.5° angled front (AMBSL1)
Self-contained 1-watt amplifier
Interfaces with standard 600-ohm telephone line
Knockouts for Wiremold®
Mounting hardware included (toggle bolts, wood, screws, pluggable screw terminals, volume knob)