The Dongguan Xin source electrical factory had been established in 2000, is specially researches and develops, produces each section audio frequency switch the company, the product main function is the vehicle with the audio frequency switch may MP3, MP4, DVD, MD, VCD, on the PDA palm digital music and so on mechanical games transform to the automobile acoustic equipment, you can appreciate the Hi-Fi numeral music through the automobile magnetic tape broadcast equipment, as a result of MP3, MP4 source acoustic fidelity digitization processing, storage capacity big, is easy to renew, when broadcast does not fear the vibration, is the extremely ideal sound source, transforms after the switch broadcast to the automobile sound system, the effect is especially fine, More importantly my factory production product completely conforms to the international environmental protection and so on the quality requirement, all materials are.