--- product_id: 345451826 title: "I2S MEMS Microphone Breakout - SPH0645LM4H (3421)" brand: "adafruit" price: "€ 31.47" currency: EUR in_stock: true reviews_count: 5 category: "Adafruit" url: https://www.desertcart.pt/products/345451826-i2s-mems-microphone-breakout-sph0645lm4h-3421 store_origin: PT region: Portugal --- # Pure digital I2S output, no analog needed Ultra-compact & slim design 50Hz-15kHz frequency range I2S MEMS Microphone Breakout - SPH0645LM4H (3421) **Brand:** adafruit **Price:** € 31.47 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with the tiniest digital mic that packs a punch! ## Quick Answers - **What is this?** I2S MEMS Microphone Breakout - SPH0645LM4H (3421) by adafruit - **How much does it cost?** € 31.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/345451826-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 - • **Sleek & Space-Savvy:** Smaller and thinner than classic mics—perfect for minimalist setups - • **Versatile Use Cases:** Ideal for voice, video recording, and conferencing—stay ahead in every meeting - • **Plug-and-Play Digital:** Purely digital I2S output eliminates analog noise and simplifies integration - • **Optimized for Modern Tech:** Designed for Cortex M-series and single-board computers—future-proof your projects - • **Crystal-Clear Audio Capture:** Wide 50Hz to 15kHz frequency range for rich, detailed sound ## Overview The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, purely digital microphone featuring a 50Hz to 15kHz frequency range. Its ultra-slim MEMS design outperforms traditional electret mics by eliminating analog conversion, offering crystal-clear audio with minimal noise. Optimized for Cortex M-series chips and single-board computers, it’s perfect for professional voice recording, video conferencing, and embedded audio projects. ## 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: Working as expected - The microphones works as expected Review: It did not come in the package - Originally shipped package without the product. They rectified immediately great product. ## 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 | | Antenna Location | Voice Recording, Video Recording, Video Conference | | Audible Noise | 15 Decibels | | Audio Sensitivity | 94 Decibels | | Best Sellers Rank | 43,464 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 796 in RCA Cables | | Box Contents | Microphone | | Brand | Adafruit | | Brand Name | Adafruit | | Colour | Blue | | Compatible Devices | Personal Computer | | Connectivity Technology | I2S | | Connectivity technology | I2S | | Connector Type | XLR | | Connector type | XLR | | Customer Reviews | 4.4 out of 5 stars 66 Reviews | | Enclosure Material | Plastic, Resin | | 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 centimetres | | Item Weight | 5 Grams | | Manufacturer | Adafruit | | Manufacturer Part Number | 3421 | | Maximum Frequency | 15 KHz | | Microphone Form Factor | Mini | | Model Name | Adafruit I2S MEMS Microphone Breakout | | Model Number | 3421 | | Model name | Adafruit I2S MEMS Microphone Breakout | | Number of Batteries | 1 Lithium Ion batteries required. | | Number of Channels | 1 | | Polar Pattern | Unidirectional | | Power Source | Corded Electric | | Recommended uses for product | Voice Recording, Video Recording, Video Conference | | Signal-to-Noise Ratio | 15 dB | | Special Feature | Purely digital with a digital output, optimized for Cortex M-series chips and single-board computers | | 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 - **Colour:** 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) ![I2S MEMS Microphone Breakout - SPH0645LM4H (3421) - Image 2](https://m.media-amazon.com/images/I/81ONZNcOfGL.jpg) ![I2S MEMS Microphone Breakout - SPH0645LM4H (3421) - Image 3](https://m.media-amazon.com/images/I/818LqHHMruL.jpg) ![I2S MEMS Microphone Breakout - SPH0645LM4H (3421) - Image 4](https://m.media-amazon.com/images/I/81Ed5T04XTL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Working as expected *by J***. on 6 April 2026* The microphones works as expected ### ⭐⭐⭐⭐⭐ It did not come in the package *by A***W on 15 April 2026* Originally shipped package without the product. They rectified immediately great product. ### ⭐ Defected *by B***L on 13 June 2026* Item defected - could not test and return. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/345451826-i2s-mems-microphone-breakout-sph0645lm4h-3421](https://www.desertcart.pt/products/345451826-i2s-mems-microphone-breakout-sph0645lm4h-3421) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-08-03*