About Us

Shenzhen Marquess Electronics Co., Ltd. was founded in July 2004, originating from the Japanese AOI Electric Motor Manufacturing Company as a joint venture specializing in the production of ECM (Electret Condenser Microphones). For 21 years, we have been dedicated to the production, research, sales, and service of noise-canceling direct microphones and microphone cores, demonstrating unique AOI expertise in both active and passive noise reduction fields.

The company's production equipment and technical processes are all introduced from Japan, with facilities such as standard soundproof rooms and Danish B&K audio analyzers. Production operations are carried out in clean and dust-free environments. Multiple automated production devices and a rigorous quality assurance framework inherited from the Japanese parent company ensure unique technical guarantees in product reliability and consistency.

The company possesses advanced production equipment including automatic edge banding machines, assembly equipment, automatic production lines, polarization devices, electric soldering irons, cleaning equipment, drying cabinets, reflow soldering equipment, automatic packaging machines, sensitivity processing machines, automatic wire cutting machines, automatic terminal machines, automatic winding machines, magnetizing machines, spot welding machines, gluing machines, vibration electromagnetic tables, and various testing equipment such as XRF analyzers, precision imaging measurement instruments, electroacoustic testers, high and low temperature humidity alternating test chambers, salt spray test chambers, and more.

Pre-Sales
Free customized samples
Free product performance testing
Free analysis support for microphone parameter data
Free technical consultation support
Free application solutions

 

During Sales
Free professional product knowledge training
Free one-on-one product matching solutions

 

After Sales
24-month warranty period