Heinrich's OHS-150 is a Commercial full weatherproof horn speaker with a transformer. This is an excellent product for use in outdoor squares and playgrounds of schools, mosques, parks, train stations, concert halls, sports venues and airports etc. Having a superior sound quality that restores voices very clearly with ideal voice coverage of over 300 to 500 square meters. It has a direct speech distance of up to 200 meters and comes with a rated power output of 200W, 100W, 50W & 25W at 100V & 8Ω line input of 100V or 70V & 8Ω. Steel enclosure and metal grille are designed with an easy pole mounting or wall mounting bracket.