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Five tiny green circuit boards with silver microphone ports

KEHIPI

KEHIPI INMP441 MEMS Microphone Module 5Pcs I2S 24-bit 61 dBA

SKU CH-QTVP-G440F

Five omnidirectional MEMS microphone modules with I2S interface deliver 24-bit digital audio at 61 dBA signal-to-noise ratio for ESP32 projects

  • Channels1
  • Power SupplyCorded Electric
  • Omnidirectional pickup captures sound from all directions
  • 24-bit I2S output connects directly to ESP32 without extra codec
  • 61 dBA signal-to-noise ratio delivers clear near-field audio
  • Low 1.4 mA current draw extends battery life in portable devices
  • Stable 60 Hz to 15 kHz response reproduces natural sound accurately

Microphone Module Pack for ESP32

This pack contains five INMP441 MEMS microphone modules with a digital I2S interface. Each module delivers 24-bit data and operates from a corded electric supply. The omnidirectional capsules suit near-field capture in teleconferencing, security and mobile-device projects.

I2S Interface and Signal Quality

The built-in I2S interface connects directly to DSPs or microcontrollers such as the ESP32 without an external audio codec. A signal-to-noise ratio of 61 dBA and sensitivity of -26 dBFS provide clear pickup, while a flat response from 60 Hz to 15 kHz preserves natural timbre. Current draw stays at 1.4 mA and power-supply rejection reaches -75 dBFS.

Makers Building Multi-Channel Arrays

Developers who need several matched digital microphones for beamforming or spatial audio will find the five-piece bundle convenient. Projects requiring analogue output, PDM interface or a different form factor should look at alternative microphone modules.

Highlights

  • Omnidirectional pickup captures sound from all directions
  • 24-bit I2S output connects directly to ESP32 without extra codec
  • 61 dBA signal-to-noise ratio delivers clear near-field audio
  • Low 1.4 mA current draw extends battery life in portable devices
  • Stable 60 Hz to 15 kHz response reproduces natural sound accurately

Specifications

BrandAITRIP
ModelINMP441
Part Number14383
Channels1
Power SupplyCorded Electric

Questions about this item

Will the MEMS sensor or the 24-bit I2S interface need replacement after extended use?

The INMP441 MEMS microphone is a solid-state component with no moving parts, so the sensor itself does not wear out. The digital I2S interface is also maintenance-free under normal operating conditions.

What limit appears first when recording continuously at the 61 dBA signal-to-noise ratio?

The 1.4 mA current draw is the primary sustained-use constraint; thermal limits are negligible at this power level, so battery capacity or supply stability will determine maximum session length.

How much heat or noise does the module produce when running all day on a 1.4 mA supply?

At 1.4 mA the module generates virtually no audible noise and negligible heat, making it suitable for continuous operation in quiet or thermally sensitive environments.

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