OBTPA brand main equipment is: assembly the modern and traditional public address system background music,
and emergency fire addressing system and paging addressing system, IP network communication public address system, a series of power amplifier equipment system, central control equipment and peripheral equipment and various indoor and outdoor sound column, hanging speakers, lawn speaker, plane speakers, smallpox horns, horn, volume control, address loudspeaker special microphone and professional address cabinet, etc. The products can be widely used in the airport, seaport, commercial building, sports stadium, exhibition center, hotel, school, supermarket, park, sauna, station, factory, the living community and other public places.