The ECM-B4015AL29-L is a 4 × 1.5 mm omnidirectional microphone capsule with a sensitivity of -29dB±3 and a signal-to-noise ratio of 60dB. Designed for hearing aids, it provides clear and reliable sound capture, enhancing the listening experience for users.
Free (std. models) + shipping
From 200 pcs (1st order only)
5,000 pcs (mixed models allowed)
Our 4015 high-sensitivity omnidirectional microphone head provides excellent anti-interference capabilities and low noise performance, ensuring clear and reliable audio capture.
Test conditions: RL = 2.2kΩ, Vs = 2V, C = 1μF
Frequency response stays flat from 50Hz to around 3kHz, then rises gradually. A gentle peak occurs between 8kHz and 10kHz before the response begins to roll off.
Capsule measures 4mm in diameter and 1.5mm in height. The front side is equipped with a dustproof mesh, while the rear side has no acoustic port.
Our production meets ISO 9001:2015 and ISO 14001:2015 standards and is tailored for automotive applications under the IATF 16949:2016 standard, ensuring comprehensive quality management. Additionally, our products comply with ROHS, CE, and FCC requirements.
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.
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.
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.
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