---
product_id: 171436666
title: "Teensy 4 Audio Shield (Rev D)"
brand: "teensy"
price: "213 kr"
currency: DKK
in_stock: true
reviews_count: 10
category: "Teensy"
url: https://www.desertcart.dk/products/171436666-teensy-4-audio-shield-rev-d
store_origin: DK
region: Denmark
---

# 16-bit/44.1kHz CD-quality audio Micro-SD slot for on-board audio storage Supports stereo I/O + optional volume control Teensy 4 Audio Shield (Rev D)

**Brand:** teensy
**Price:** 213 kr
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your sound game — pro audio power in a pocket-sized shield!

## Quick Answers

- **What is this?** Teensy 4 Audio Shield (Rev D) by teensy
- **How much does it cost?** 213 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/171436666-teensy-4-audio-shield-rev-d)

## Best For

- teensy enthusiasts

## Why This Product

- Trusted teensy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Teensy 4.x Compatibility:** Optimized for Teensy 4.0/4.1 boards, unlocking powerful Cortex-M7 DSP capabilities for next-level audio.
- • **Plug & Play Audio Library:** Effortlessly program complex audio effects and synth waveforms with ready-to-use software support.
- • **Compact & Versatile Design:** Slim form factor with 3.5mm headphone jack and flexible header pins for tailored connectivity.
- • **Expandable Storage & Control:** Add your own micro-SD audio files and customize volume with optional potentiometer integration.
- • **Simultaneous Stereo Input & Output:** Seamlessly mix and process multiple audio streams in real-time for pro-grade sound projects.

## Overview

The Teensy 4 Audio Shield (Rev D) is a compact, high-fidelity audio expansion board designed for Teensy 4.0/4.1 microcontrollers. It delivers 16-bit, 44.1kHz stereo input/output with a built-in SGTL5000 codec and headphone amplifier, supports simultaneous audio streaming, and features a micro-SD slot for audio storage plus optional volume control. Perfect for DIY audio projects, real-time DSP, and custom sound applications.

## Description

This is the Teensy 4 Audio Shield (Rev D) that can be added to a Teensy 4.0 for your next audio project. The shield provides you with an easy-to-use tool to add high quality 16 bit, 44.1 kHz sample rate audio to your Teensy. With the audio library available, you will be able to use both the input and output simultaneously in order to make a variety of great audio projects, incorporate synth waveforms, effects, and mix multiple sound streams and CD quality audio to your headphones or different line outs!The Teensy Audio shield utilizes the SGTL5000 stereo codec with headphone amp IC to decode and drive audio files and the Cortex-M4 DSP instructions from the Teensy dev board to provide power to a real-time FFT. Each board is also equipped with 3.5mm audio jack for headphones, a micro-SD card slot for storing audio files, and optional spaces for a 25k potentiometer (volume control) and flash memory chip. The two rows of 14x1 headers are not included to give you the freedom to choose how to connect your audio board with your Teensy.Note: Please be aware that a Teensy 4.0 will also need to be purchased to get your Teensy Audio Shield operational.

Review: Works great - I followed the tutorial on the manufacturers web site and did all the examples. They all worked but when I tried the ones where blinking the LED was included they crashed. commenting out that part of the code, they ran perfectly. I am now developing my own code to build a noise reduction filter (DSP filter) for my ham radio set. The total cost of the processor board and this board is much less than one of the off the shelf DSL filters and I get to optimize my own code.
Review: Very useful - I put this together with a teensy 4.1 to make an audio delay and now I'm working on a version with the codec instead of the whole audio board, to use with the teensy.

## Features

- Use Input and Output at the same time: Audio chip connects to Teensy using 7 signals
- Versatility: Stereo headphone and stereo line-level output, and also stereo line-level input or mono microphone input
- Customizable: Equipped with 3.5mm audio jack for headphones, a micro-SD card slot for storing audio files, and optional spaces for a 25k potentiometer (volume control) and flash memory chip
- Easy to use: Audio library available for programming
- Note: Please be aware that a Teensy 4.0 will also need to be purchased to get your Teensy Audio Shield operational. Rev D is compatible with Teesny 4x only

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Z6NW913 |
| Best Sellers Rank | #519 in Single Board Computers (Computers & Accessories) |
| Customer Reviews | 4.4 4.4 out of 5 stars (111) |
| Date First Available | August 8, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.352 ounces |
| Item model number | TEENSY4_AUDIO |
| Manufacturer | PJRC |
| Product Dimensions | 0.39 x 3.54 x 3.15 inches |

## Product Details

- **Color:** green
- **Compatible Devices:** Headphone
- **Connector Type:** 3.5mm audio jack, SD card slot
- **Item dimensions L x W x H:** 0.39 x 3.54 x 3.15 inches
- **Specific Uses For Product:** Microphone

## Images

![Teensy 4 Audio Shield (Rev D) - Image 1](https://m.media-amazon.com/images/I/71LVgrwXRmL.jpg)

## Questions & Answers

**Q: Compatible with Teensy 4.1?**
A: Yes, it can be used with both the Teensy 4.0 and 4.1.

**Q: does this work on teensy 4.1?**
A: I’ve used it with a 4.0. According to the manufacturer it is supposed to work with the 4.0 and 4.1.

**Q: Will this work with arduino mega?**
A: This audio adapter board is a shield specifically made to work with the Teensy 4.0 Microcontroller Development board. It is not designed to work with an Arduino Mega.

**Q: Are you still selling Rev D or are you now selling D2?**
A: We only have the Rev D2 version. My understanding is that due to component shortages, the Rev D version is no longer available.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by J***E on November 7, 2020*

I followed the tutorial on the manufacturers web site and did all the examples. They all worked but when I tried the ones where blinking the LED was included they crashed. commenting out that part of the code, they ran perfectly. I am now developing my own code to build a noise reduction filter (DSP filter) for my ham radio set. The total cost of the processor board and this board is much less than one of the off the shelf DSL filters and I get to optimize my own code.

### ⭐⭐⭐⭐⭐ Very useful
*by C***R on September 20, 2023*

I put this together with a teensy 4.1 to make an audio delay and now I'm working on a version with the codec instead of the whole audio board, to use with the teensy.

### ⭐⭐⭐⭐⭐ Powerful Libraries, great sound
*by D***S on February 1, 2020*

Pjrc has written library support that makes accessing the SGTL5000 chip simple for any level of maker or audio-tinkerer. Make sure you isolate with transformers for ground-loops, that will be the most likely cause of any noise. If properly isolated, this board is very noise free. The effects, graphic eq, delay, surround, etc. are simple to program and well documented in the handy gui web-site provided by PJRC. These boards (and the 3x compat boards) are my go-to boards for audio processing, and spectrum analysis projects.

## Frequently Bought Together

- Teensy Audio Adaptor Board 4.0
- Teensy 4.0 (with Pins)
- Gikfun TRRS 3.5mm Jack Breakout Headphone Video Audio MP3 Jack for Arduino (Pack of 3pcs) AE1223

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-01*