JBL is the world's largest professional speaker manufacturer, from the development of raw materials, the design and production of speaker units, and the design and production of loudspeakers can be fully controlled in their own hands. JBL speakers have a very wide range of services, including cinemas, large-scale sound engineering, large-scale mobile performances, studio monitors, audio for bands, and entertainment venues such as discos, dance halls, karaoke, bars and other civilian use. On the one hand, from the most advanced audiophile to the most popular home theater combination, JBL can be seen everywhere.