Shenzhen JHC Electronic CO. Ltd is a private high-tech company which specializes in the development, production, sale and service of electronic products. Since 2002 the company has been engaged in developing and producing Condenser Microphone including EarSet Microphone, Lapel Microphone, Car Microphone and Capacitance Cartridge, which has been widely used in such vocal music fields as teaching, singing, conference, interview and presiding program.