---
product_id: 386208445
title: "I2S MEMS Microphone Breakout - SPH0645LM4H (3421)"
brand: "adafruit"
price: "€ 39.54"
currency: EUR
in_stock: true
category: "Adafruit"
url: https://www.desertcart.be/products/386208445-i2s-mems-microphone-breakout-sph0645lm4h-3421
store_origin: BE
region: Belgium
---

# Compact 7.6x5.1x2.5 cm size Purely digital I2S output 50Hz-15kHz frequency range I2S MEMS Microphone Breakout - SPH0645LM4H (3421)

**Brand:** adafruit
**Price:** € 39.54
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game with the tiniest digital powerhouse!

## Quick Answers

- **What is this?** I2S MEMS Microphone Breakout - SPH0645LM4H (3421) by adafruit
- **How much does it cost?** € 39.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/386208445-i2s-mems-microphone-breakout-sph0645lm4h-3421)

## Best For

- adafruit enthusiasts

## Why This Product

- Trusted adafruit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultra-Compact Design:** Sleek, bottom-ported MEMS mic fits effortlessly into any project without bulk or compromise.
- • **Future-Ready Audio Tech:** Join the cutting edge with MEMS technology that’s redefining sound detection for modern creators.
- • **Seamless I2S Integration:** Plug-and-play digital output optimized for Cortex M-series and single-board computers—no analog hassle.
- • **Crystal-Clear Digital Audio:** Experience pristine sound capture with a 50Hz to 15kHz frequency range, perfect for professional-grade recordings.
- • **Low Noise, High Sensitivity:** Capture every detail with a 15dB noise floor and 94dB sensitivity, ensuring your audio stands out.

## Overview

The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, bottom-ported digital microphone featuring a 50Hz to 15kHz frequency range and purely digital I2S output. Designed for seamless integration with Cortex M-series chips and single-board computers, it delivers high sensitivity (94dB) and low noise (15dB) in a sleek 7.6 x 5.1 x 2.5 cm form factor, making it ideal for professional audio recording, voice recognition, and embedded sound applications.

## Description

Listen to this good news - we now have a breakout board for a super tiny I2S MEMS microphone. Just like 'classic' electret microphones, MEMS mics can detect sound and convert it to voltage, but they're way smaller and thinner. This microphone doesn't even have analog out, its purely digital. The I2S is a small, low cost MEMS mic with a range of about 50Hz - 15KHz, good for just about all general audio recording/detection.

## Features

- small, low cost MEMS mic with a range of about 50Hz - 15KHz
- there are three digital pins
- The microphone is a single mono element
- This I2S MEMS microphone is bottom ported
- MEMS mics can detect sound and convert it to voltage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XNL2GBW |
| Antenna Location | Voice Recording, Video Recording, Video Conference |
| Audible Noise | 15 Decibels |
| Audio Sensitivity | 94 Decibels |
| Best Sellers Rank | #59,436 in Computers ( See Top 100 in Computers ) #870 in Single-Board Computers |
| Brand | Adafruit |
| Built-In Media | Microphone |
| Color | Blue |
| Compatible Devices | Personal Computer |
| Connectivity Technology | I2S |
| Connector Type | XLR |
| Customer Reviews | 4.5 4.5 out of 5 stars (69) |
| Frequency Range | 50 hz 15 khz |
| Frequency Response | 15 KHz |
| Hardware Platform | PC |
| Impedance | 16 Ohms |
| Item Dimensions | 7.6 x 5.1 x 2.5 centimeters |
| Item Weight | 5 Grams |
| Manufacturer | Adafruit |
| Maximum Frequency | 15 KHz |
| Mfr Part Number | 3421 |
| Microphone Form Factor | Mini |
| Model Name | Adafruit I2S MEMS Microphone Breakout |
| Model Number | 3421 |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Number of Channels | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Polar Pattern | Unidirectional |
| Power Source | Corded Electric |
| Signal-to-Noise Ratio | 15 dB |
| Special Feature | Purely digital with a digital output, optimized for Cortex M-series chips and single-board computers |
| UPC | 717520031291 604776613404 |

## Product Details

- **Brand:** Adafruit
- **Connectivity technology:** I2S
- **Connector type:** XLR
- **Model name:** Adafruit I2S MEMS Microphone Breakout
- **Recommended uses for product:** Voice Recording, Video Recording, Video Conference

## Images

![I2S MEMS Microphone Breakout - SPH0645LM4H (3421) - Image 1](https://m.media-amazon.com/images/I/611Bn5t945L.jpg)

## Frequently Bought Together

- Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H (3421)
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- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-10-15*