---
product_id: 91483603
title: "Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H (3421)"
brand: "adafruit"
price: "€ 24.57"
currency: EUR
in_stock: true
reviews_count: 6
category: "Adafruit"
url: https://www.desertcart.es/products/91483603-adafruit-i2s-mems-microphone-breakout-sph0645lm4h-3421
store_origin: ES
region: Spain
---

# Wide 50Hz-15KHz frequency range Ultra-compact & slim form factor Purely digital I2S output Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H (3421)

**Brand:** adafruit
**Price:** € 24.57
**Availability:** ✅ In Stock

## Summary

> 🎤 Elevate your sound game with the future of microphones!

## Quick Answers

- **What is this?** Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H (3421) by adafruit
- **How much does it cost?** € 24.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/91483603-adafruit-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

- • **Broad Frequency Capture:** Covers 50Hz to 15KHz, ideal for versatile audio recording and detection needs.
- • **Budget-Friendly Innovation:** High-performance MEMS tech at a fraction of traditional mic costs—upgrade your audio game without breaking the bank.
- • **Sleek & Space-Savvy Design:** Smaller and thinner than classic mics—perfect for modern, minimalist setups.
- • **Crystal-Clear Digital Audio:** No analog conversion means pristine sound capture with minimal noise.
- • **Plug-and-Play Compatibility:** Works seamlessly with popular platforms like Home Assistant and WLED out of the box.

## Overview

The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, purely digital microphone module featuring a 50Hz to 15KHz frequency response. Its ultra-slim MEMS design eliminates analog conversion, delivering clean digital audio ideal for general recording and detection. Compatible with popular DIY and IoT platforms, it offers professional-grade sound capture in a budget-friendly, space-saving package.

## 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.

Review: PandemicHQ - This worked right out of the box. I have this working in Home Assistant via EspHome. Reach out to me if you have questions or need consultation in that application.
Review: Wled Audio Reactive - Worked right out of the box with no issues. Running it as a digital mic on the WLED audioreactive chain, it was detected in the console on the first run and has been going for 6 hrs now without any code modifications. I just ordered another.

## Features

- Smaller and thinner than 'classic' electret microphones
- Low cost MEMS mic with a range of about 50Hz - 15KHz
- Good for just about all general audio recording/detection
- Purely digital, No analog conversion required!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XNL2GBW |
| Audio Sensitivity | 94 Decibels |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #13,824 in Musical Instruments ( See Top 100 in Musical Instruments ) #191 in Condenser Microphones #871 in Single Board Computers (Computers & Accessories) |
| Customer Reviews | 4.4 4.4 out of 5 stars (58) |
| Date First Available | January 18, 2017 |
| Frequency Response | 15 KHz |
| Hardware Platform | PC |
| Impedance | 16 Ohms |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.176 ounces |
| Item dimensions L x W x H | 3 x 2 x 1 inches |
| Item model number | 3421 |
| Manufacturer | Adafruit |
| Material | Plastic |
| Microphone Form Factor | Mini |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Number of Channels | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 3 x 2 x 1 inches |
| Signal-to-Noise Ratio | 15 dB |
| UPC | 717520031291 604776613404 |

## Product Details

- **Brand:** Adafruit
- **Color:** Blue
- **Compatible Devices:** Personal Computer
- **Connectivity Technology:** XLR
- **Connector Type:** XLR
- **Included Components:** Microphone
- **Model Name:** Adafruit I2S MEMS Microphone Breakout
- **Polar Pattern:** Unidirectional
- **Recommended Uses For Product:** Voice Recording, Video Recording, Video Conference
- **Special Feature:** Purely digital with a digital output, optimized for Cortex M-series chips and single-board computers

## Images

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ PandemicHQ
*by A***L on September 2, 2024*

This worked right out of the box. I have this working in Home Assistant via EspHome. Reach out to me if you have questions or need consultation in that application.

### ⭐⭐⭐⭐⭐ Wled Audio Reactive
*by W***H on November 17, 2020*

Worked right out of the box with no issues. Running it as a digital mic on the WLED audioreactive chain, it was detected in the console on the first run and has been going for 6 hrs now without any code modifications. I just ordered another.

### ⭐ Barely works-
*by M***E on March 28, 2024*

Only works if I repeat exactly the person I am transcribing, into the phone myself-even then, despite being articulate I must make constant corrections. Try to get accurate transcribe of another person-talk slow clear English-you’ll spend half your time filling in mega blanks.

## Frequently Bought Together

- Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H (3421)
- Adafruit Mini Metal Speaker w/Wires - 8 ohm 0.5W [ADA1890]
- 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 Spain*
*Store origin: ES*
*Last updated: 2026-01-22*