Honors And Qualifications
Car Multimedia Microphone Series
Company Profile



  • Customized Solutions
  • Customized Solutions

    Ermai has accumulated rich experience in technology fields such as acoustics, wireless,electronic circuits, and system integration.With its rich project experience, it can provide product logo design, acoustic design, packag-ing design, and integrated system integration solutions.

  • Customized demand plan
    Customized demand plan



Our expertise goes beyond that. We also collaborate with specific industry leaders for feasibility studies technology, and full product development.We not only focus on innovation, but also on technology,audio.and our future.

Our Purpose



Dongguan Ermai Electronic Technology Co., Ltd. was founded in 2008, is a professional electro-acoustic equipment research and development, production, sales in one of the specialized enterprises, unique professional design and superb production technology, and constantly launch new products, mature technology, stable product performance, very high cost-effective, quality after-sales service as the company’s foothold.

View More
  • Custom services

    Custom services

    Professional customization can be provided according to the enterprise, including logo, exterior design, and voice control, etc.

  • After-sale service

    After-sale service

    We will provide you with advantageous after-sales service and better guarantee for your use.

  • Product testing

    Product testing

    We can provide product inspection services to make you feel more confident and trust the product.


Latest News

  • 01


    Principle and application of condenser microphone

    Thu Dec 23 15:12:07 CST 2021 The core component of condenser microphone is the pole head, which is composed of two metal films; When the sound wave causes its vibration, the different spacing of the metal film causes the different capacitance and generates current. Because the pole head needs a c...

  • 02


    What is the difference between electret condenser microphone and dynamic microphone?

    Thu Dec 23 15:00:14 CST 2021 1. Sound principle is different a. Condenser microphone: Based on the principle of capacitive charge and discharge between conductors, using ultra-thin metal or gold-plated plastic film as vibrating film to induce sound pressure, so as to change the static voltage bet...

  • 03


    Composition and working principle of electret condenser microphone

    Tue Dec 21 21:38:37 CST 2021 Electret microphone consists of acoustic electric conversion and impedance conversion. The key element of acoustoelectric conversion is electret diaphragm. It is a very thin plastic film, in which a layer of pure gold film is evaporated on one side. Then, after the el...

Inquiry For Pricelist

For inquiries about our products or pricelist, please leave your email to us and we will be in touch within 24 hours.

Click to submit
Partners (4)
Partners (3)
Partners (1)
Partners (5)(1)
Partners (6)
Partners (2)