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Precision Electro-Acoustic Components

Changzhou E-Sound Electronics Co., Ltd (Duoxin) – A trusted manufacturer since 1989, specializing in high-performance speakers, buzzers, microphones, and receivers for global industrial and consumer electronics applications.

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About Duoxin

Founded in 1989 as Changzhou Duoxing Electronics Device Factory, we restructured in 1994 as Changzhou Duoxing Electronics Co., Ltd. (Changzhou E-Sound Electronics Co., Ltd.) in collaboration with Taiwanese partners.

For over three decades, Duoxin has been a professional manufacturer specializing in the development, production, and sales of electro-acoustic components. Our products are widely used in medical equipment, automotive instrumentation, security systems, notebook computers, cordless devices, and more.

1989

Founded

30+

Years Experience

15+

Global Partners

Factory Interior

Our Product Range

We offer a comprehensive portfolio of electro-acoustic components engineered for reliability, clarity, and performance across diverse applications.

Mylar Speaker DXI40N-A

Mylar Speaker DXI40N-A

High sound quality miniature speaker ideal for compact electronics and portable devices.

  • • High fidelity audio output
  • • Compact design
  • • Durable mylar diaphragm
Loudspeaker DXYD77W-40Z-8A-F

Loudspeaker DXYD77W-40Z-8A-F

Robust loudspeaker with multiple impedance options for versatile integration.

  • • 4Ω / 8Ω / 16Ω impedance
  • • 2W power handling
  • • Wide frequency response
Mobile Phone Miniature Speaker DX131825

Mobile Phone Miniature Speaker DX131825

Ultra-thin speaker designed for smartphones and compact communication devices.

  • • Light and high quality
  • • Optimized for voice clarity
  • • SMD and through-hole options
Piezo Buzzer DXP1325W

Piezo Buzzer DXP1325W

High-efficiency piezoelectric buzzer for alert and notification systems.

  • • Low power consumption
  • • High sound pressure level
  • • Resonant frequency: 4kHz
Magnetic Buzzer DX1313070

Magnetic Buzzer DX1313070

High-sound-quality magnetic transducer for industrial and consumer applications.

  • • High sound quality
  • • Compact 13x13x7mm size
  • • 5V DC operation
Receiver SD-153B

Receiver SD-153B

High-clarity earpiece receiver for mobile and telecommunication devices.

  • • Light and high quality
  • • Optimized for voice frequency
  • • Low distortion
Waterproof Speaker

Waterproof Speaker

Designed for outdoor and harsh environments with IP-rated protection.

  • • Sealed enclosure
  • • Corrosion-resistant materials
  • • Suitable for automotive & marine use
Car Speaker

Car Speaker

High-performance audio components engineered for automotive sound systems.

  • • Vibration-resistant design
  • • Wide temperature tolerance
  • • High power handling
SMD Speaker DX-S15040R8N-01

SMD Speaker DX-S15040R8N-01

Surface-mount miniature speaker for automated PCB assembly.

  • • 15x15x4.0mm compact size
  • • Ideal for IoT and smart devices
  • • High reliability
Microphone

Electret Microphone

Precision microphone for voice capture in communication and recording devices.

  • • High sensitivity
  • • Low noise
  • • Omnidirectional pickup

Why Choose Duoxin?

Quality Assurance

Rigorous inspection flow from incoming materials to outgoing products ensures consistent reliability.

High Performance

Engineered for clarity, durability, and optimal sound pressure across all operating conditions.

Trusted Supplier

Over 15 years of trade cooperation with global clients who rely on our consistency and professionalism.

Technical Expertise

Dedicated R&D team and professional staff focused on innovation and customer support.

30+

Years in Industry

50+

Product Models

15+

Global Clients

100%

Quality Inspection

Frequently Asked Questions

What types of electro-acoustic products does Duoxin manufacture?

Duoxin specializes in speakers (Mylar, loudspeaker, mobile phone, laptop/tablet/TV, waterproof, car), buzzers (piezo, magnetic, mechanical), microphones, and receivers (mobilephone and telephone type).

Are your products suitable for industrial applications?

Yes, our components are widely used in medical equipment, automotive electronics, security systems, and industrial instrumentation due to their reliability and performance.

Do you offer custom design services?

Yes, we support OEM and ODM services. Our engineering team can assist with custom specifications, including size, impedance, frequency response, and mounting options.

What quality control measures do you follow?

We implement a comprehensive inspection flow including incoming material inspection, in-process checks, finishing inspection, and outgoing quality control to ensure product consistency.

How can I request a sample?

Please visit our official website or contact our sales manager directly to request product samples and technical specifications.

Get in Touch

Contact our team for product inquiries, samples, or technical support.

Sales Manager

Name: Mingxia Zhou

Phone: +86-13915035893

Tel/Fax: +86-519-83993358

Email: info@duoxin.com

Company Info

Company: Changzhou E-Sound Electronics Co., Ltd.

Founded: 1989

Location: Changzhou, Jiangsu, China

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