SD Card Reader with mp3 Amplifier module

MP3 Audio Player Module with Amplifier – USB/TF Card Support

Features:

• Onboard 2W Mono Audio Amplifier

  • Up to 3W output when powered at 5V

  • Directly supports speaker connection (recommended: 4Ω 3W speaker)

• 3.5mm Gold-Plated Audio Jack

  • Compatible with headphones or external audio systems

• Micro USB Power Supply Interface

  • Supports power via USB (e.g., power banks, chargers) or 3.7V lithium battery

• Plug-and-Play Audio Playback

  • Supports TF cards (microSD) and USB flash drives

  • Auto-play on power-up (MP3 format only)

  • LED indicator turns red during playback

• Speaker Terminal Block

  • No soldering required – easy wiring

Specifications:

• Power Supply Range: 3.7V – 5.5V

• Audio Output Power:

  • 2W typical

  • Up to 3W at 5V supply

• Recommended Speaker: 4Ω, 3W

• Supported Formats: MP3

• Storage Support:

  • TF card (tested up to 16GB)

  • USB flash drive (tested up to 32GB)