Since its foundation in 1998, Samjoo Electronics Co., Ltd. has been manufacturing megaphones, PA amplifier , PA speaker(Horn, column,wall type).driver unit , microphone.We provide our products in the brand name of JEC and OEM to the world.We are gearing up raising our brand name recognition constantly. We has reorganized our system and business with ISO9001 and ISO14001 Certification and are doing our best to meet the rapidly changing market situation with our strict quality control and research and development. We introduce new products with competitive price and best quality in the markets every year which is acknowledged its excellent items in foreign and domestic markets.