Standard Horizon
VLH-3000A 30W Dual Zone PA/Loud Hailer/Fog w/Listen Back & 2 Optional Intercom StationsFeatures:30W PA/Hailer output with Listen BackDual Zone - Forward, Aft or Both6 Preprogrammed Fog Signals: Underway, Stop, Sail, Tow, Anchor and AgroundHorn and...