Quality Assurance


ISO14001
ISO14001
ISO 9001-2015
ISO 9001-2015
IATF 16949-2016
IATF 16949-2016

Since its establishment, we have adhered to the mission of "Let everyone hear a good sound", based on sound restoration, focusing on microphone core technology, and committed to providing customers with high-quality dynamic moving coil cores, condenser electret cores, instrument microphones, wired microphones, headset clips, sound customization and other product services. Products are mainly used in car karaoke, KTV entertainment, professional performances, live recording, conference systems, smart homes, security, and communications. By the end of 2022, our dynamic moving coil cores have penetrated more than 56% of the in-car karaoke market and more than 63% of the high-end KTV entertainment market.