Heavy duty round PA horn speakers with a fibreglass compression driver and 100V transformer with a weatherproof ABS cover and reflex cone. Sound is projected from a spun aluminium flare which is angle adjustable on the mounting bracket. Power tappings are selected via a rotary switch at the rear with a 2-core cable for connection to a 100V amplifier. Built to withstand the elements and designed to deliver information and alerts in public outdoor areas.