We was established in 1991. Our acoustic product business includes full range loudspeaker, micro speaker, mylar speaker, telephone receiver, condenser microphone, piezoelectric buzzer... you can rely on our products service and experience in acoustic and telecom products and we assure to meet your requirements. Our company passed ISO 14001:2004 international environmental management & quality system certification in June, 2006, and has won customer's trust through the integrated organizational structure and advanced management.