Established in 1975, Transound Electronics Co., Ltd. specializes in manufacturing condensers and dynamic cartridges and speakers, and receivers. Our company covers 10000 square meters and has 700 staff. The total production is 8 million pieces monthly. We have obtained ISO9001 and ISO14001 certificates. We can supply various styles of products or can be made according to customers' requirements. The main engineers and technicians of our R&D team have over 20 years' experience in ECM. We take the position in making back electret microphone cartridges and the core materials such as back electret slats. We develop new products and supply good quality and service for customers. Our products are the core components of acoustic products, applied widely in modern high-tech products such as broadcasting professional microphones, mobile phones, digital cameras, telephones, walkie-talkie, computers, MP3, PDA and Bluetooth. Traditional acoustic products have been widely applied in recorders, audiphones, sensors, TV and broadcasts. We have established good relationships with many famous companies both at home and aboard. We sincerely hope to cooperate with customers from all over the world. If you are interested in our products, please do not hesitate to contact us.