One good Rauland 3701 (Atlas Soundolier AP15T) horn speaker similar to shown (pict is sample) All have been only used indoors, and were removed during changing of a warehouse paging system to a different type. These are great for: Warehouse paging baseball field factory paging kitchen paging garage paging Sawmill paging Outdoor venue, golf, pool, beach/lifeguard etc. Grocery store stock area Jobsite paging School gym, outdoors etc 70V input, (adjustable wattage see picts) See our listing for University Sound 10W paging amp, that plus this and a mic or source would make for and instant setup. Includes adjustable bracket Branded Rauland, but Atlas Sound design looks to be AP15T Pict is sample all may have some paint overspray dust or scuffs typical of warehouse use. Soda can for size reference (these are a medium size horn)