




🎤 Tiny Mic, Big Impact – Hear the Future Now!
The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, purely digital microphone module designed for high-quality audio detection and recording. Featuring a frequency response of 50Hz to 15KHz and a small 3x2x1 inch footprint, it eliminates analog noise by outputting digital I2S signals directly. Ideal for professional and hobbyist projects alike, it excels in sound-reactive applications and delivers reliable performance in tight spaces.
| ASIN | B06XNL2GBW |
| Audio Sensitivity | 94 Decibels |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #8,798 in Musical Instruments ( See Top 100 in Musical Instruments ) #124 in Condenser Microphones #541 in Single Board Computers (Computers & Accessories) |
| Customer Reviews | 4.5 4.5 out of 5 stars (61) |
| 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 |
S**D
Small but mighty! Excellent for WLED projects.
I didn’t test it’s sound QUALITY, but I was amazed by how well it DETECTED sound in my WLED sound reactive project, even with it being placed inside a project box and under a bookcase! I didn’t expect it to really do much and added it as a “because I can” feature for fun but it turns out it’s very reactive and we’ve used it a lot. The gain and squelch settings in WLED allow you to make it as reactive as you’d like and tune out background noise like your furnace The store bought LED controllers that I’ve used (years ago) had to be very close to a speaker to detect anything and light up but NOT THIS! Very impressed and would highly recommend for projects like this.
J**.
Excellent, high quality
Excellent, I love these
A**L
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.
W**H
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.
M**N
Great seller, arrived fast, and works great.
Excellent product, thanks!
M**E
Barely works-
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.
E**Z
Gut
M**L
Kann ich noch nicht sagen da ich es mit wled und dem esp 32 noch nicht zum laufen bekommen habe.
Trustpilot
5 days ago
2 weeks ago