---
product_id: 568163109
title: "20W Voice Playback Module, DC 6-35V Sound Board USB Downloadable Music Player 24-bit DAC Output MP3 WAV Support TF Card 32GB Max for Broadcast Device DIY"
brand: "pemenol"
price: "¥4703"
currency: JPY
in_stock: true
reviews_count: 5
category: "Pemenol"
url: https://www.desertcart.jp/products/568163109-20w-voice-playback-module-dc-6-35v-sound-board-usb
store_origin: JP
region: Japan
---

# Wide DC 6-35V Power Input Supports up to 32GB TF Card 20W Class D Amplifier 20W Voice Playback Module, DC 6-35V Sound Board USB Downloadable Music Player 24-bit DAC Output MP3 WAV Support TF Card 32GB Max for Broadcast Device DIY

**Brand:** pemenol
**Price:** ¥4703
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your sound game with PEMENOL’s powerhouse voice module — because your project deserves to be heard!

## Quick Answers

- **What is this?** 20W Voice Playback Module, DC 6-35V Sound Board USB Downloadable Music Player 24-bit DAC Output MP3 WAV Support TF Card 32GB Max for Broadcast Device DIY by pemenol
- **How much does it cost?** ¥4703 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/568163109-20w-voice-playback-module-dc-6-35v-sound-board-usb)

## Best For

- pemenol enthusiasts

## Why This Product

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

## Key Features

- • **Powerful 20W Amplifier:** Drive 4Ω speakers directly with crystal-clear sound for your broadcast or DIY projects.
- • **Ultra-Wide Voltage Range:** Operate seamlessly from 6V to 35V DC, perfect for versatile embedded system integration.
- • **7 Intelligent Control Modes:** Flexible playback control via buttons, UART, or one-line serial bus to fit any automation setup.
- • **Massive 32GB Storage Capacity:** Store and instantly access up to 255 high-quality MP3/WAV tracks via TF card or USB.
- • **Adjustable Volume & Easy Updates:** Fine-tune audio output with built-in potentiometer and update files effortlessly via USB.

## Overview

The PEMENOL 20W Voice Playback Module is a compact, versatile sound board featuring a built-in 20W Class D amplifier, support for MP3 and WAV formats, and up to 32GB TF card storage. It offers 7 control modes including UART and one-line serial control, adjustable volume, and wide DC 6-35V power compatibility, making it ideal for professional broadcast devices and DIY embedded audio projects.

## Description

Description:20W voice playback module is an intelligent voice module, integrated IO segmentation trigger, UART serial control, ONE_line single bus serial control, standard MP3 and other 7 working modes, simple dip switch settings; onboard 20W Class D amplifier; support MP3, WAV decoding format, up to 32G TF card, can be connected to a computer via USB data cable to update TF storage audio files.FEATURES:1. Support MP3, WAV decoding format.2. Support sample rate(KHz):8/11.025/12/16/22.05/24/32/44.1/48.3. 24-bit DAC output, dynamic range support 90dB, signal-to-noise ratio support 85dB.4. DC 6~35V ultra-wide working voltage.5. Maximum support for 32G memory card, can be connected to a computer via USB data cable to update the stored audio files.6. Integrated high-power amplifier output, driving 4Ω speakers up to 20W, driving 8Ω speakers up to 10W.7. UART serial port control voice broadcast function, can control play, pause, select songs, volume up or down and other functions, the maximum selection of 65535 tracks, baud rate 9600 bit / s.8. Support IO one-to-one trigger play function, 8 IO ports alone trigger 8 tracks or 8 IO ports combined trigger 255 tracks.9. Support One_line single bus serial port control, can control play, pause, song selection, volume up and down and other functions.10. Support 3 configuration IO for up to 7 working modes selection, dip switch settings, easy to operate.11. 8-way IO design ESD protection

Review: After reading many reviews, I was initially confused by the conflicting reports about its functions, how it plays files, how content should be loaded, and which file types it supports. In my experience, this board is very functional and easy to use. I loaded my MP3 files from my Windows 11 Pro PC onto an 8 GB micro SD/TF card, numbered the files starting at 00001 and up, and made sure they met the required format. I initially had a power issue due to reversed polarity from a scavenged power supply, but once that was corrected, everything worked exactly as expected. One side of a momentary 12-volt push-button switch (2-pin, normally off) is wired to the corresponding trigger location on the board, while the other side of each switch is soldered to a single negative wire running from the board. With the DIP switches set to 1-off, 2-on, and 3-off, pressing a button plays the corresponding file once and then stops. Some have criticized the sound quality, but I think that depends greatly on the speaker you're using. For my project it was acceptable with a small 4 ohm speaker. The instructions mention sound files sampling frequency (KHz) : 8/11.025/12/16/22.05/24/32/44.1/48. I resampled all of my files to 44.1 with no issues. IMO - If you want better quality use a better speaker. This board is small and the soldering was tough on old eyes but it works great for me, and I’m ordering another one to have on hand for a future project.
Review: Works good! The PDF file linked/provided on the desertcart product page is pretty good documentation IMO. I used Win 10, micro-USB cable, cheap earbuds & a cheap 32GByte TF micro-SD flash card (see pic). Win 10 recognized the flash card & I loaded 4 MP3 songs & 2 short wav sounds. Numbered them 00001.mp3 & 00005.wav, etc. When I disconnected the USB from the PC, I plugged it into a power-block to power the board back up. Listening with earbuds, I can hear each file played when requested by shorting the wire from the ground pin to the trigger pin. In the pic you can see I used a handy 10-Ohm resistor, but you could use a simple wire to trigger. In my project I plan to use pushbuttons to trigger the files. I didn't check the speaker-output or the power-input or the volume control. Notes: 1) There is PDF file documentation, as of today it is linked on the desertcart page, you may have to scan carefully to see the link. 2) You can power the board from USB, but if the USB cable is attached to Windows, the board will be in flash-drive mode, so you must switch to a USB power block, after you have copied your files in place. 3) The 3 DIP-switches select 8 different trigger modes. Read the docs carefully to decide which one you need. I tested all the discrete (button) modes, but not serial/UART modes. Lots of fun for Arduino fans. 4) I used a cheap 32-GigaByte TF/micro-SD card & I did not format it, so it seems to me the board handles this huge capacity standard format ok, but of course I have only loaded up a few MBs so far, so there may be some limits on capacity. I was able to play both MP3 & WAV files.

## Features

- INTELLIGENT VOICE PLAYBACK: Voice playback moduel has 2 Single control , 2 Loop control , UART control, One_line control mode within 7 control modes.and Play up to 8 or 255 musics which can meet the needs of different scenarios.
- MONO 20W CLASS D AMPLIFIER: MP3 player has a built-in amplifier, not only direct AUX passive audio output to such as earphone, but also active output which can connected to 4ohm 20W speaker directly.
- 32G TF CARD SOCKET: Sound board can support up to 32G TF card which be able to store more than enough music files.Users can download and update voice files directly via USB, which is very fast and easy to use.
- ADJUSTABLE VOLUME: The voice playback module has a built-in potentiometer, so you can adjust the volume at will according to your needs.
- PROGRAMMABLE CONTROL: Users can not only control by simple buttons, but also connect to control devices such as MCU or PLC to complete music playback by command, integrated into their own embedded devices.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B9H91ZBP |
| Best Sellers Rank | #184,785 in Electronics ( See Top 100 in Electronics ) #655 in MP3 Players |
| Item model number | GY17437 |
| Manufacturer | PEMENOL |
| Product Dimensions | 5 x 5 x 0.51 cm; 9 g |

## Product Details

- **Brand:** PEMENOL
- **Compatible devices:** Personal Computer
- **Format:** MP3 Audio, WAV
- **Hardware interface:** USB
- **Microphone form factor:** Built-In

## Images

![20W Voice Playback Module, DC 6-35V Sound Board USB Downloadable Music Player 24-bit DAC Output MP3 WAV Support TF Card 32GB Max for Broadcast Device DIY - Image 1](https://m.media-amazon.com/images/I/71en2O5TgDL.jpg)

## Questions & Answers

**Q: What is the current draw on this device, at say 12V max volume both channels?**
A: The operating current changes as the music is played, and the volume has a big impact. The maximum is about 100mA

**Q: Sound files on this chip are triggered by connecting gnd to one of the #d holes.   is it safe to leave this wire connected permanently for loop play?**
A: The spec sheet doesn't say whether it is safe to do this or not.  I would monitor the setup for a while to ensure there are no overheating problems.

**Q: Can this device be set in continuous playback mode. And how simply do you do that?**
A: Yes.  Set the device into IO Independent mode 0 or 1 using the red DIP switches.  Load your mp3 or wav file onto a TF ( micro SD ) card and name it 1.mp3 or 1.wav.  Insert the TF card, power up the device, and connect IO pin 0 to ground.  File 1.mp3 or 1.wav will play until IO Pin 0 is removed from ground.  If you set the device to Independent Mode 0, the device will continue playing the current song to the end of the file after releasing IO Pin 0 from ground.  If you set the device to Independent Mode 1, it will stop playing immediately after the releasing IO Pin 0 from ground.  Hold IO Pin 0 to ground for continuous playback of song "1".  Google for the DY-HV20T manual for technical details.  Good luck!

**Q: How so I wire a switch?**
A: If you look on the amazon listing. It shows 8 switch connection points that you can individually connect to the ground connection to play 8 different sounds. They need to be saved and downloaded with the 8 proper names in order to work. Just a tip, to get good sound out you need to connect to computer speakers.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***R on 23 December 2025*

After reading many reviews, I was initially confused by the conflicting reports about its functions, how it plays files, how content should be loaded, and which file types it supports. In my experience, this board is very functional and easy to use. I loaded my MP3 files from my Windows 11 Pro PC onto an 8 GB micro SD/TF card, numbered the files starting at 00001 and up, and made sure they met the required format. I initially had a power issue due to reversed polarity from a scavenged power supply, but once that was corrected, everything worked exactly as expected. One side of a momentary 12-volt push-button switch (2-pin, normally off) is wired to the corresponding trigger location on the board, while the other side of each switch is soldered to a single negative wire running from the board. With the DIP switches set to 1-off, 2-on, and 3-off, pressing a button plays the corresponding file once and then stops. Some have criticized the sound quality, but I think that depends greatly on the speaker you're using. For my project it was acceptable with a small 4 ohm speaker. The instructions mention sound files sampling frequency (KHz) : 8/11.025/12/16/22.05/24/32/44.1/48. I resampled all of my files to 44.1 with no issues. IMO - If you want better quality use a better speaker. This board is small and the soldering was tough on old eyes but it works great for me, and I’m ordering another one to have on hand for a future project.

### ⭐⭐⭐⭐⭐ Review
*by M***Q on 12 September 2025*

Works good! The PDF file linked/provided on the Amazon product page is pretty good documentation IMO. I used Win 10, micro-USB cable, cheap earbuds & a cheap 32GByte TF micro-SD flash card (see pic). Win 10 recognized the flash card & I loaded 4 MP3 songs & 2 short wav sounds. Numbered them 00001.mp3 & 00005.wav, etc. When I disconnected the USB from the PC, I plugged it into a power-block to power the board back up. Listening with earbuds, I can hear each file played when requested by shorting the wire from the ground pin to the trigger pin. In the pic you can see I used a handy 10-Ohm resistor, but you could use a simple wire to trigger. In my project I plan to use pushbuttons to trigger the files. I didn't check the speaker-output or the power-input or the volume control. Notes: 1) There is PDF file documentation, as of today it is linked on the Amazon page, you may have to scan carefully to see the link. 2) You can power the board from USB, but if the USB cable is attached to Windows, the board will be in flash-drive mode, so you must switch to a USB power block, after you have copied your files in place. 3) The 3 DIP-switches select 8 different trigger modes. Read the docs carefully to decide which one you need. I tested all the discrete (button) modes, but not serial/UART modes. Lots of fun for Arduino fans. 4) I used a cheap 32-GigaByte TF/micro-SD card & I did not format it, so it seems to me the board handles this huge capacity standard format ok, but of course I have only loaded up a few MBs so far, so there may be some limits on capacity. I was able to play both MP3 & WAV files.

### ⭐⭐⭐⭐ Review
*by F***S on 21 August 2025*

Had a little trouble at the start. Could not get mp3 files to play, but that could be my files. Converting the files to wav worked. The headphone jack seems to work with my 12v source and USB power. It wasn't like 100% easy, but it's not the worst time I've ever had in my whole life. 8/10 lol.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-16*