i beam mounting brackets for sale, brand-new and used.

The AH5A metal horn speaker are rugged, self-contained one-way amplified paging horn assemblies with screwdriver-adjustable volume controls.Their sturdy, weatherproof, all-aluminum construction make them ideal for use in industrial plants, warehouses, schools, construction sites, transportation terminals, and recreation areas.Universal mounting brackets permit adjustment in vertical and horizontal planes; banding slots are provided forease in securing the horns to beams and pillars.

I got these in bulk used. The ones I tested power on, but I don't have the parts to properly test them. So I think they're in working condition but I'm selling them as is, and I can't guarantee they're in working condition.