With over 17 years' experience in manufacturing professional tweeters for Hi-Fi and car audio systems, our integrated production facilities drive us to conduct manufacturing control system which strictly adhere to ISO 9002 Certification from SGS Yarsley (U.K.) and The Bureau of Commodity Inspection & Quarantine (Taiwan). We always consider ourselves more as a partner than merely as a vendor to our clients. By working closely with them to ensure the quality vital to the finished product has gained us a very remarkable and sound reputation from some of the word's best-know companies. We value every opportunity to explore a mutual and beneficial relationship with you. Please contact us today for more information.