Non-Destructive MP3 Decoding Board with Self-Powered TF Card U Disk Decoded Player Module is a compact audio playback module designed for playing MP3 files from TF cards (Micro SD cards) and USB flash drives. This MP3 decoder board features a built-in 2W mono amplifier, 3.5mm gold-plated headphone output jack, and multiple power supply options, making it suitable for DIY audio projects, voice playback systems, warning message devices, and embedded sound applications.

This MP3 decoding module supports TF card and U disk playback modes with automatic MP3 playback after power-on. The onboard control buttons allow easy adjustment of songs, volume, playback mode, pause/play functions, and repeat settings without requiring additional controllers. It provides clear audio output and convenient wiring with no soldering required for speaker terminals.

Features:

• Non-destructive MP3 decoding player module

• Supports MP3 audio playback from TF card and USB U disk

• Built-in 2W mono audio amplifier

• Direct speaker connection support

• 3.5mm gold-plated headphone jack for external audio output

• Supports headphones and external speakers

• Micro USB power input interface

• Compatible with 3.7V lithium battery and 5V USB power supply

• Automatic MP3 playback after power-on

• Built-in control buttons for easy operation

• Supports song selection and volume adjustment

• Supports pause/play and playback mode switching

• Red LED indicator flashes during MP3 playback

• Default TF card playback mode after startup

• Supports single song and all song playback modes

• Repeat function available through button control

• No soldering required for speaker terminals

• Compact design for easy integration into electronic projects

• Suitable for audio modification and DIY applications

How It Works:

• Insert an MP3 file storage device such as a TF card or USB flash drive.

• Connect the module with a suitable power source through Micro USB, lithium battery, or 5V USB supply.

• The module automatically detects and plays MP3 files after powering on.

• Audio output can be connected directly to a speaker through the onboard amplifier.

• Headphones or external audio systems can be connected through the 3.5mm audio jack.

• Use onboard buttons to control volume, songs, playback mode, and repeat functions.

Applications:

• Voice message playback systems

• Warning and alarm sound devices

• Public information systems

• DIY MP3 player projects

• Embedded audio solutions

• Electronic greeting devices

• Robot voice modules

• Smart home audio projects

• Advertisement audio players

• Educational electronics projects

• Vehicle audio modification projects

• Industrial voice notification systems

• Audio playback equipment repair and modification

Control Functions:

• Previous/Next button: Change songs

• Volume buttons: Increase or decrease sound level

• Play/Pause button: Control playback status

• Mode button: Switch playback source or mode

• Repeat button: Select single song or all songs loop playback

Product Instructions:

• Format TF card or USB drive with compatible MP3 files before use.

• Insert the storage device properly into the TF card slot or USB port.

• Connect power supply using Micro USB, 3.7V lithium battery, or 5V USB power source.

• Connect a suitable speaker to the speaker output terminals.

• Use control buttons to adjust playback settings.

• Keep the module away from moisture and excessive heat.

• Use proper power supply voltage to avoid damage.

Specifications:

• Product Type: MP3 Decoder Player Module

• Audio Format Support: MP3

• Storage Support: TF Card / Micro SD Card and USB U Disk

• Amplifier Output Power: 2W Mono

• Audio Output: Speaker Output and 3.5mm Headphone Jack

• Headphone Interface: 3.5mm Gold-Plated Jack

• Power Input: Micro USB

• Power Supply Options: 3.7V Lithium Battery / USB 5V Power Supply

• Playback Mode: Single Song / All Songs / Repeat Mode

• Control Method: Onboard Buttons

• Indicator: Red LED Playback Indicator

• Installation Type: DIY Embedded Module

• Speaker Connection: No Solder Speaker Terminal Design

• Application: MP3 Playback, Audio Modification, Voice Systems

• Module Type: Digital Audio Decoder Board

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