




🎤 Tiny Mic, Big Impact — Hear What Others Miss!
The Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H) is a compact, purely digital microphone module designed for professional-grade audio detection and recording. With a frequency response spanning 50Hz to 15KHz and 94dB sensitivity, it delivers precise sound capture without analog noise. Its ultra-small size and I2S digital output make it ideal for innovative projects requiring clean, reliable audio input in tight spaces.
| ASIN | B06XNL2GBW |
| Audio sensitivity | 94 Decibels |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | 47,951 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 956 in RCA Cables |
| Colour Screen | No |
| Customer Reviews | 4.6 4.6 out of 5 stars (59) |
| Date First Available | 18 Jan. 2017 |
| Frequency response | 15 KHz |
| Hardware platform | PC |
| Impedance | 16 Ohms |
| Item Weight | 5 g |
| Item dimensions L x W x H | 7.6 x 5.1 x 2.5 centimetres |
| Item model number | 3421 |
| Item weight | 5 Grams |
| Manufacturer | Adafruit |
| Material | Plastic, Resin |
| Material Type | Plastic, Resin |
| Microphone form factor | Mini |
| Number of batteries | 1 Lithium Ion batteries required. |
| Number of channels | 1 |
| Power source | Corded Electric |
| Product Dimensions | 7.62 x 5.08 x 2.54 cm; 5 g |
| Signal-to-noise ratio | 15 dB |
| Size | 0.66 x 0.5 x 0.07 inches |
| UPC | 717520031291 604776613404 |
E**Z
Gut
S**D
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.
M**L
Kann ich noch nicht sagen da ich es mit wled und dem esp 32 noch nicht zum laufen bekommen habe.
J**.
Excellent, I love these
A**L
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.
Trustpilot
1 day ago
2 months ago