MP3 Decoder Board with Amplifier for TF Card and USB Drive

Power and Playback Options This MP3 decoder board offers flexible powering choices to suit your setup. You can run it through the USB power interface using a mobile power bank or USB charger with your phone data cable, or alternatively use a 3.7V lithium battery or a USB 5V power adapter. This versatility makes it easy to integrate into portable projects or fixed installations alike. Playback Modes and Operation The board supports MP3 decoding with automatic playback on power-up, indicated by a red LED that updates during play. It handles both U-disk and TF card playback. When the TF card mode is selected and no card is present, the unit automatically switches to U-disk mode. If both storage devices are installed, you can manually select the desired playback mode using the main operating controls. Simple Installation and Build Designed for convenience, the board requires no soldering to the horn terminals, which simplifies wiring considerably. Its modular construction makes it straightforward to modify or adapt for your particular project needs. This plug-and-play approach saves time during assembly and keeps the installation process clean and accessible. Audio Output Quality The built-in 2W mono amplifier delivers clear, solid sound output, reaching up to 3W when powered at 5V. You can connect a speaker directly, with a 4-ohm 3W unit recommended for best results. A gold-plated 3.5mm headphone jack is also included, allowing you to connect headphones or route the audio to an external sound system when required.