---
product_id: 171436666
title: "4 Audio Shield (Rev D)"
brand: "teensy"
price: "S/.98"
currency: PEN
in_stock: true
reviews_count: 11
category: "Teensy"
url: https://www.desertcart.pe/products/171436666-4-audio-shield-rev-d
store_origin: PE
region: Peru
---

# 16-bit/44.1kHz CD-quality audio Micro-SD slot for audio storage Optional 25k potentiometer for volume control 4 Audio Shield (Rev D)

**Brand:** teensy
**Price:** S/.98
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game with Teensy 4 Audio Shield – where pro audio meets DIY innovation!

## Quick Answers

- **What is this?** 4 Audio Shield (Rev D) by teensy
- **How much does it cost?** S/.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/171436666-4-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

- • **Developer-Friendly:** Leverage the powerful Teensy Audio Library and Cortex-M4 DSP for advanced audio processing.
- • **Expandable Storage:** Store and play your audio files directly from the onboard micro-SD card slot.
- • **Customizable Controls:** Add a 25k potentiometer for precise volume adjustments tailored to your needs.
- • **Plug & Play Versatility:** Easily connect headphones, line-level inputs, or a mono mic for diverse sound setups.
- • **Simultaneous Input & Output:** Streamline your audio projects with real-time stereo input and output capabilities.

## Overview

The Teensy 4 Audio Shield (Rev D) is a compact, high-fidelity audio expansion board designed for the Teensy 4.0 microcontroller. It supports simultaneous stereo input and output at 16-bit, 44.1 kHz quality, features a micro-SD card slot for audio storage, and offers customizable volume control options. Perfect for developers and audio enthusiasts aiming to build sophisticated, real-time audio projects with ease and professional-grade sound.

## 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: Best price AND fastest delivery - Best price AND fastest delivery This little board is amazing !
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.

## 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 | #149 in Single Board Computers (Computers & Accessories) |
| Brand | Teensy |
| Color | green |
| Compatible Devices | Headphone |
| Connector Type | 3.5mm audio jack, SD card slot |
| Customer Reviews | 4.5 4.5 out of 5 stars (114) |
| Input Voltage | 3.3 Volts |
| Item Dimensions | 0.39 x 3.54 x 3.15 inches |
| Item Weight | 0.01 Kilograms |
| Manufacturer | PJRC |
| Model Number | TEENSY4_AUDIO |
| Number of Items | 1 |
| Number of Ports | 1 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Specific Uses For Product | Microphone |
| UPC | 714833879169 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |

## 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

![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

### ⭐⭐⭐⭐⭐ Best price AND fastest delivery
*by J***T on March 15, 2026*

Best price AND fastest delivery This little board is amazing !

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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 Peru*
*Store origin: PE*
*Last updated: 2026-05-26*