---
product_id: 91483603
title: "I2S MEMS Microphone Breakout - SPH0645LM4H (3421)"
brand: "adafruit"
price: "AR$49926"
currency: ARS
in_stock: true
reviews_count: 7
category: "Adafruit"
url: https://www.desertcart.com.ar/products/91483603-i2s-mems-microphone-breakout-sph0645lm4h-3421
store_origin: AR
region: Argentina
---

# Purely digital I2S output Frequency range 50Hz-15KHz Compact & ultra-thin design I2S MEMS Microphone Breakout - SPH0645LM4H (3421)

**Brand:** adafruit
**Price:** AR$49926
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** I2S MEMS Microphone Breakout - SPH0645LM4H (3421) by adafruit
- **How much does it cost?** AR$49926 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/91483603-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:** Captures rich audio from deep bass to crisp highs (50Hz to 15KHz) for versatile recording needs.
- • **Cost-Effective Innovation:** Affordable MEMS technology that doesn’t compromise on performance or quality.
- • **Ultra-Compact Form Factor:** Smaller and thinner than classic electret mics—perfect for sleek, space-conscious projects.
- • **Crystal-Clear Digital Audio:** No analog conversion means pristine sound quality and seamless integration with modern digital systems.
- • **Plug-and-Play Compatibility:** Works effortlessly with popular platforms like Home Assistant and ESPHome—get started instantly.

## Overview

The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, purely digital microphone designed for high-quality audio capture across a 50Hz to 15KHz frequency range. Its ultra-thin MEMS design eliminates analog conversion, ensuring clean digital output ideal for modern audio projects and smart home integrations. Lightweight and cost-effective, it’s a top choice for professionals and makers seeking precision sound in a minimal footprint.

## 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: Excellent, high quality - Excellent, I love these
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.

## 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 | #7,228 in Musical Instruments ( See Top 100 in Musical Instruments ) #102 in Condenser Microphones #424 in Single Board Computers (Computers & Accessories) |
| Customer Reviews | 4.4 4.4 out of 5 stars (60) |
| 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

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, high quality
*by J***. on January 23, 2026*

Excellent, I love these

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H (3421)
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**Shop now:** [https://www.desertcart.com.ar/products/91483603-i2s-mems-microphone-breakout-sph0645lm4h-3421](https://www.desertcart.com.ar/products/91483603-i2s-mems-microphone-breakout-sph0645lm4h-3421)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-06*