Talkback Marine Paging Horn WHITE- Marine paging horn-Talkback-Easy Omni-Lock I-Beam clamp mounting system-Weather resistant-Interior/exterior-Built-in amplifier-Built-in volume control-Non-yellowing, perfect for shipboard and marinas-Stainless steel hardware-Resists deterioration by salt, sun, or high humidity-Equipped with O-ring seals-360deg rotation-Shatter-proof base fits seven standard electrical gang boxes-White-Weight: 4.5lbs-Dimensions: 7.38 in H x 10 in W x 10.4 in D-VALCOM POWER UNITS (0)- VCV1048M