The ECM-M3722-4256M is a low-power analog MEMS microphone for space-constrained designs. With -42dB sensitivity, 56dB SNR, and superior RF immunity, it delivers crisp voice pickup in TWS earbuds, smart home devices, and IoT applications—all in a compact 3.76mm package.
3,000 pcs
1 pcs
from 500 pcs
The ECM-M3722-4256M features a sensitivity of -42±3dB, ensuring clear audio capture even in low-volume environments. Its compact size of 3.76mm x 2.24mm x 1.10mm makes it perfect for devices with limited space, while its low power consumption (1.6V to 3.6V) is ideal for battery-powered applications. The microphone also offers excellent RF immunity, reducing interference in high-electromagnetic environments, and operates reliably across a wide temperature range of -40℃ to +85℃.
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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