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 |
