747d Audio Mp3 Usb Player Decoder Module

Updated August 15, 2026

Overview

Product sourcing insights & recommendations

21 来源

The 747D Audio MP3 Decoder Module is a widely used component in the DIY and low-cost audio retrofit market. It is primarily valued for its compact size and multi-functional integration, though it has specific technical constraints that users must manage carefully.

Product Overview & Key Features

The 747D module is a "system-on-chip" (SoC) based audio player that integrates several functions onto a single PCB. Alibaba

Core Capabilities: Supports MP3 format playback via USB Flash Drives and Micro SD (TF) cards. It also includes a built-in FM Radio (87.5–108.0 MHz) and a Line-in (AUX) port. Petervis Alibaba
Connectivity: Most modern versions include Bluetooth 5.0 for wireless streaming from smartphones. Alibaba
Display: Features a distinctive LED display with "dancing bars" on the sides for visual feedback. Petervis
Technical Constraint: This module typically requires a strict 5V DC supply. It often lacks a voltage regulator, meaning exceeding 5.5V or reversing polarity will likely destroy the SoC. Alibaba

Market Trends & Industry Insights

Sourcing & Cost: The 747D remains highly competitive, with wholesale prices ranging from $1.10 to $1.50 per unit for bulk orders. Alibaba Alibaba Shenzhen-based manufacturers dominate the supply chain, offering extensive OEM/ODM customization options. Alibaba Alibaba
Growth Drivers: The broader audio module market is projected to grow from $8.7 billion in 2025 to $17.6 billion by 2034 (CAGR of 8.2%). Dataintelo This growth is fueled by the demand for wireless connectivity (Bluetooth 5.3+) and the integration of audio modules into smart home devices and automotive infotainment. Linkedin Marketsandmarkets
Consumer Use Cases: The primary market for these modules includes:
Retrofitting: Adding modern features (Bluetooth/USB) to vintage radios or car stereos. Alibaba Fortunebusinessinsights
DIY Projects: Building portable "boomboxes" or garage audio hubs using cheap Class-D amplifiers (e.g., PAM8403). Alibaba Youtube
Budget Infotainment: Low-cost replacements for damaged car head units in older vehicles. Alibaba

I have compiled a list of the most relevant products and verified manufacturers in the files below. These include technical spec comparisons and wholesale contact details.

Here is the market and product analysis for the 747D audio module. You can continue with:

Sources & References

21 sources cited · Verified industry data & reports

How to Use the 747D Audio MP3 USB Player Decoder ...

Alibaba

A no-fluff guide on installing, wiring, and choosing the right 747D MP3 decoder module for DIY audio projects—covering power, output, ...

MP3 Decoder Board 747D

AliExpress

The MP3 Decoder Board 747D is a compact audio module that plays MP3 files from SD or USB storage, suitable for DIY, car, and home audio systems.

747d mp3 module suppliers

Alibaba.com

Alibaba offers 5 747d Mp3 Module Suppliers, and 747d Mp3 Module Manufacturers, Distributors, Factories, Companies. There are 1 OEM, 1 ODM, 1 Self Patent.

MP3 Player Module -- Music Speakers 747D

The Quantum Archive

It has an LED display, with vertical dancing bars on the sides. There is no voltage regulator on this module and therefore it is strictly for 5 V power only.

Global MP3 Player Market 2026

Semiconductor Insight

The market is projected to decline from USD 103 million in 2025 to USD 39.8 million by 2033, exhibiting a negative CAGR of -13.0% during the forecast period.

MP3 WMA Decoder Board Audio Bluetooth 4.2 Module ...

Amazon.com

[BLUETOOTH 4.2 SUPPORT]The mp3 module support Bluetooth 4.2. With blue backlight function, it support USB sound card function and Micro USB 5V power input.

747d Audio Mp3 Usb Player Decoder Module

Overview

Product Overview & Key Features

Market Trends & Industry Insights

747d Audio Mp3 Usb Player Decoder Module Bluetooth Fm Sd

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Sources & References