HONGCHANG (Changzhou) Electronic Co., Ltd. | Precision Audio Components Manufacturer

Core Product Categories

Buzzer

Piezo, magnetic, SMD, mechanical, and high-decibel sirens for alarms, appliances, and industrial systems.

Speaker

Mini, waterproof, coaxial, car, TV, and multimedia speakers with custom drivers and high fidelity.

Ultrasonic Sensor

40kHz and 25kHz transducers for distance measurement, cleaning, and industrial sensing applications.

Piezo Element

Bimorphs, ceramic discs, feedback sensors, and custom piezoelectric components for precision control.

Featured Products

54mm 102dB Piezo Siren

• 12VDC / 24VDC
• High decibel: ≥102dB
• Piezoelectric alarm
• Industrial-grade durability

9x4mm 3V SMD Magnetic Buzzer

• Ultra-compact SMD design
• 3V operation
• Ideal for GPS devices
• Self-driven magnetic type

9.0x1.8mm Ultra-thin SMD Buzzer

• Only 1.8mm height
• Passive piezoelectric
• Surface mount technology
• For space-constrained devices

14x7mm 5V 85dB Piezo Siren

• 5V AC operation
• 85dB sound output
• Compact electric alarm
• Reliable for consumer electronics

30x24mm Pulse Tone Buzzer

• 5V / 12V / 24V options
• 95dB output
• Pulse tone signal
• Industrial control compatible

45x26mm 12V 105dB Lawn Mower Buzzer

• 105dB high output
• 12V DC operation
• Weather-resistant design
• OEM buzzer manufacturer

50x18mm 25kHz Waterproof Ultrasonic Transducer

• 25kHz frequency
• IP67 waterproof rating
• 100dB output
• For cleaning and sensing

400Hz Mechanical Buzzer

• 400Hz tone frequency
• Simple on/off control
• Long operational life
• Cost-effective solution

About HONGCHANG

HONGCHANG (Changzhou) Electronic Co., Ltd. is a professional manufacturer specializing in the research, development, and production of electronic audio components. With years of experience, we serve global clients in industrial automation, consumer electronics, automotive, security, and smart devices.

Our product lines include piezoelectric buzzers, magnetic buzzers, SMD buzzers, speakers, tweeters, piezo elements, ultrasonic transducers, and audio jammers. We focus on reliability, precision, and customization to meet diverse application needs.

Global Reach

Serving customers in Europe, North America, Asia, and the Middle East.

Custom Solutions

OEM/ODM support with engineering collaboration.

Why Choose HONGCHANG?

Quality Assurance

ISO-compliant manufacturing with rigorous testing for durability, sound output, and electrical performance.

Engineering Support

Custom design, prototyping, and technical consultation to match your application requirements.

Fast Global Delivery

Efficient logistics and reliable shipping to Europe, Americas, Asia, and beyond.

15+

Years in Industry

500+

Global Clients

10M+

Units Shipped Annually

99.8%

Customer Satisfaction

Frequently Asked Questions

What types of buzzers do you manufacture?

We produce piezoelectric buzzers (self-driven and passive), magnetic buzzers, SMD buzzers, mechanical buzzers, and high-decibel piezo sirens for various applications.

Can you customize speaker size and impedance?

Yes, we offer OEM/ODM services for custom speaker dimensions, impedance (e.g., 4Ω, 8Ω, 16Ω), power rating, and frequency response.

Are your ultrasonic sensors waterproof?

Many of our ultrasonic transducers are available with IP67 or higher waterproof ratings, suitable for outdoor and harsh environments.

Do you support small MOQs for prototypes?

Yes, we accommodate sample and small batch orders for testing and development purposes.

Get in Touch

Reach out for product inquiries, custom solutions, or technical support.

[email protected]

+8613951212075

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