14mm 150Ω Dynamic Mic Capsule for Headset Microphones

14mm dynamic microphone capsule for headset use, compact and durable design

14mm 150-ohm dynamic mic capsule integrated into a headset microphone for speech pickup

ECM-DM13860K150 microphone capsule size and frequency response

Dynamic microphone element for two-way radio speaker systems, providing clear voice transmission in rugged environments.

Dynamic microphone capsule integrated into boom headsets, ideal for hands-free communication in sports and call centers.

Microphone element optimized for classroom amplifier systems to project clear speech in teaching environments.

Compact 14mm unidirectional dynamic microphone capsule designed for a variety of voice pickup applications—including boom headsets, two-way radio speaker microphones, intercoms, and classroom amplification systems—delivering natural voice clarity with a 150Ω impedance and a focused 200Hz–7kHz frequency response.

🚫 Factory direct sales only – no retail.
Minimum order quantities (MOQs) apply.
For intercom & headset makers
📞 Contact us for orders & inquiries.

🧪 Sample

Free (std. models) + shipping

🧭 Trial Order

From 200 pcs (1st order only)

📦 MOQ

3,000 pcs (mixed models allowed)

Model: ECM-DM13860K150
Dimensions: 13.8 × 6 mm
Directivity: Unidirectional
Sensitivity: -70dB±2
Impedance: 150Ω
Frequency Response: 200Hz~7000Hz

Tags: 15mm Dynamic Vocal Mics

Technical Specifications

The ECM-DM13860K150 dynamic microphone capsule is purpose-built for voice-centric devices used in hands-free and fixed-mount communication environments. With its compact 13.8 × 6 mm form factor, stable 150Ω impedance, and a frequency response tailored to speech (200Hz–7kHz), it ensures clear, intelligible voice pickup with minimal ambient interference.

The unidirectional pickup pattern isolates the speaker’s voice, making it ideal for boom headsets in call centers, sports coaching, and classroom amplification systems where vocal clarity is essential. Its durable construction and consistent audio performance also suit rugged intercom units and two-way radio speaker microphones operating in demanding environments.

Whether in professional communication, instructional use, or mobile voice systems, the ECM-DM13860K150 delivers reliable, focused sound reproduction across a broad range of real-world applications.

Dynamic Microphone Capsule Components

Component List: Sponge, Cover, Diaphragm, Coil, Magnetic Steel, Iron Pots, Holder, PCB with Tin Plating.

Typical Frequency Response

The frequency response spans from 200Hz to 7kHz, featuring a gentle rise that peaks near 6kHz before rolling off—ideal for clear midrange and vocal presence.

Dimensions (UNIT: mm)

Dimensions

The capsule measures 13.8mm in diameter and 6mm in height.

Reliability Tests

High Temperature Test: Microphone subjected to +60℃ ±3℃ for 96 hours with 20-50% humidity, followed by 6 hours of normal temperature lay.

Low Temperature Test: Microphone subjected to -25℃ ±3℃ for 96 hours with 20-50% humidity, followed by 6 hours of normal temperature lay.

Humidity Test: Microphone exposed to 40℃ and 90-95% relative humidity for 96 hours, followed by 6 hours of normal temperature lay.

Temperature Cycle Test: Microphone subjected to rapid temperature changes from normal temperature to +60℃ ±3℃ for 1 hour (normal temperature lay for 3 hours) and then to -25℃ ±3℃ for 1 hour (normal temperature lay for 3 hours).

Sensitivity Stability: Sensitivity remains within ±3dB of the initial sensitivity after each environmental test.

Sampling Process

Confirm customer requirements:

Review product application, microphone capsule specifications, usage scenarios, and sound quality needs.

Recommend and specify:

Provide recommended microphone capsule models and detailed specifications for customer evaluation.

Sample provision and testing:

Deliver microphone samples for customer testing and feedback purposes.

Optimize and finalize:

Refine microphone design based on feedback, finalize samples, and proceed to mass production upon quality approval.

Quality Assurance

Conducting sampling inspections of incoming materials to ensure compliance with standard requirements.

Performing inspection audits to ensure the stability and control of the entire manufacturing process.

Conducting pre-shipment inspections to ensure that products meet established quality standards.

Acoustic Laboratory

Testing of background noise, sensitivity, frequency response curve, and directionality indicators.

Verification of the impact of different circuits, structural dimensions, materials, and processes on indicators.

Reliability testing at both the new product design stage and the mass production regular stage.

Automatic Workshop

Utilizing fully automated production lines to ensure high efficiency and consistency.

Equipped with state-of-the-art facilities, including a 10,000-level dust-free workshop.

Employing a rigorous 21-step process to guarantee product stability.