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Amplifier Board Module
Created with Pixso. MP3 Decoder Board with 2W Mono Amplifier TF Card and U Disk Play Mode for 3.7V Lithium Battery Audio Player Module

MP3 Decoder Board with 2W Mono Amplifier TF Card and U Disk Play Mode for 3.7V Lithium Battery Audio Player Module

Brand Name: Creatall
Model Number: amplifier audio board
MOQ: 10pcs
Price: negotiable
Delivery Time: 5-8 work days
Detail Information
Place of Origin:
Guangdong, China
Features:
Amplifier Audio Board
Application:
Amplifier Audio Board
Mounting Type:
Amplifier Audio Board
Description:
Amplifier Audio Board
Lead Time:
1-3 Days
Warranty:
3 Month
MOQ:
Sample
Payment:
Trade Assurance
Place Of Original:
China
Port:
Shenzhen Port Guangzhou Port
Supply Ability:
1000 Piece/Pieces per Day
Highlight:

Audio Player Decoder Board Module

,

wholesale amplifier board supplier

Product Description
TF Card U Disk MP3 Format Decoder Board Module Amplifier Decoding Audio Player Module
Product Description
  • Superior sound quality with onboard 2W mono amplifier (5V power up to 3W) directly connected to speaker (recommended 4Ω 3W speakers)
  • 3.5mm gold plated headphone jack for headphones or external audio connection
  • MicroUSB port for mobile power supply or USB cable charging
  • Supports 3.7V lithium battery or USB 5V power supply
  • Supports TF Card (mobile phone memory card) and U disk play modes
  • No soldering required with speaker terminals for easy wiring
  • Designed to facilitate modification
Product Overview
  • Supports MP3 format with automatic power-on playback
  • Red LED flashes during MP3 playback
  • Supports U disk (tested 32G) and TF Card (tested 16G) play modes
  • Power-on default: TF card mode; automatically switches to U disk mode if TF card not present
  • Manual mode selection available when both devices are installed
  • Buttons control song selection, volume adjustment, play/pause, and mode switching
  • Menu button for single/all song play mode selection
  • Default power-up mode: all song mode
  • Repeat button for cycling mode selection
Key Operating Instructions
Button Press Action Long Press Action (~2 seconds)
Prev / V-- Switch to previous song Volume down
Next / V++ Switch to next song Volume up
P / P / Mode Play/Pause switch U disk / TF card mode switch
Repeat Single/All song mode switch No long press function
Important Notes

Long press duration is approximately 2 seconds.

When using U disk mode, 5V power supply is recommended as some U disks do not support 3.7V power supply.

Product Specifications
Power Range 3.7~5.5V
Product Size 45mm × 36mm
Design Features Double board design with large copper area for stability and reliability
Packaging Anti-static bag packaging to prevent electrostatic damage during transit
Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

M
Miguel González
Spain Feb 15.2026
Increíble calidad de sonido HiFi. Conexión estable y salida estéreo clara. Placa bien fabricada, instalación sencilla.
O
Oscar Nilsson
Sweden Feb 10.2026
in liten Bluetooth-förstärkare! Stabil Bluetooth 5.0-anslutning, ren 3W-ljudutgång. Fungerar bra med 5V-ström, kompakt och praktisk.
L
Lucas Dubois
France Feb 8.2026
Décodeur audio sans perte exceptionnel! Son multicanal excellent, aucun bruit de fond. Branchement USB plug&play, parfait pour home cinéma.