--- product_id: 345451826 title: "I2S MEMS Microphone Breakout - SPH0645LM4H (3421)" brand: "adafruit" price: "NT$1249" currency: TWD in_stock: true reviews_count: 5 url: https://www.desertcart.tw/products/345451826-i2s-mems-microphone-breakout-sph0645lm4h-3421 store_origin: TW region: Taiwan --- # Compact 7.6x5.1x2.5 cm size Frequency range 50Hz-15kHz Purely digital I2S output I2S MEMS Microphone Breakout - SPH0645LM4H (3421) **Brand:** adafruit **Price:** NT$1249 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with the tiniest digital mic powerhouse! ## Quick Answers - **What is this?** I2S MEMS Microphone Breakout - SPH0645LM4H (3421) by adafruit - **How much does it cost?** NT$1249 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/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 - • **Low Noise Floor:** 15 dB signal-to-noise ratio ensures clean, professional-grade audio detection. - • **Broad Audio Spectrum:** Crisp sound capture from deep bass (50Hz) to clear highs (15kHz) for versatile recording. - • **Ultra-Compact Design:** Smaller and thinner than classic electret mics, perfect for sleek, space-conscious projects. - • **Lightweight & Durable:** Weighs just 5 grams with a sturdy plastic/resin build—engineered for on-the-go innovation. - • **Seamless Digital Integration:** No analog conversion needed—plug & play with modern Cortex M-series and SBCs. ## Overview The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, purely digital microphone designed for seamless integration with modern microcontrollers and single-board computers. Offering a frequency response from 50Hz to 15kHz and a low noise floor of 15 dB, it delivers clear, professional-quality audio in a tiny 7.6 x 5.1 x 2.5 cm form factor weighing just 5 grams. Ideal for voice recording, video conferencing, and general audio detection, this breakout board eliminates analog conversion, streamlining your audio projects with cutting-edge MEMS technology. ## 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 - 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 | |---------------|-------| | Antenna Location | Voice Recording, Video Recording, Video Conference | | Asin | B06XNL2GBW | | Audible Noise | 15 Decibels | | Audio Sensitivity | 94 Decibels | | Best Sellers Rank | 40,324 in Electronics & Photo (See Top 100 in Electronics & Photo) 761 in RCA Cables | | Box Contents | Microphone | | Brand Name | Adafruit | | Colour | Blue | | Compatible Devices | Personal Computer | | Connectivity Technology | I2S | | Connector Type | XLR | | Customer Reviews | 4.5 4.5 out of 5 stars (69) 4.5 out of 5 stars | | 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 | | 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 - **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 on Reviewed in Germany 6 April 2026* The microphones works as expected ### ⭐⭐⭐⭐⭐ It did not come in the package *by on Reviewed in the United States 15 April 2026* Originally shipped package without the product. They rectified immediately great product. ### ⭐ Defected *by on Reviewed in the United Arab Emirates 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.tw/products/345451826-i2s-mems-microphone-breakout-sph0645lm4h-3421](https://www.desertcart.tw/products/345451826-i2s-mems-microphone-breakout-sph0645lm4h-3421) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-09-17*