The Standard Horizon VLH-3000 is a high-performance 30-watt loud hailer with an intercom function. The VLH-3000 is designed for a wide variety of vessels, requiring high-quality onboard and ship-to-ship communications under almost all circumstances. Solidly built and waterproof, the VLH-3000 contains a high-quality built-in speaker and a microphone. On its front panel, there are easy-to-see state indicators. By generating voice or eight internationally acknowledged warning signals from the horns, the VLH-3000 notifies nearby vessels of your presence and status regardless of visibility conditions. The VLH-3000 can also function as an intercom, when connected to optional intercom speakers. Up to two intercoms can be connected for two-way communication between the bridge and one or all intercom stations. The VLH-3000 can be connected to various pieces of equipment to enable useful functions. When connected to an external alarm unit, the VLH-3000 can function as a security alarm. Measures 7.1"W x 4.3"H x 5.5"D. Three-year warranty.