Standard Horizon 30 W Dual Zone loud hailer with adjustable backlight. Black. 4.3" x 7.1" x 5.5". Features include:

30W PA output
Dual zone output forward, aft, or all
6 pre-programmed fog signals: underway, stop, sail, tow, anchor, aground Adjustable backlight
Horn and siren
Noise canceling microphone
Easy push button control
Loud speaker audio
2W loud internal speaker audio output
Compatible with MLS-410LH intercom speaker
IPX7 waterproof
3 year warranty