MP3 decoder module, connect the speakers, power-on Insert the U disk TF card to play music and key operation control

Note: The LED on the board is a play indicator, not a power indicator, it will only light up when playing music.

● Superb sound quality, on-board 2W mono amplifier (5V power supply up to 3W) directly connected to speakers (recommended with 4Ω 3W speakers), 3.5mm gold-plated headphone socket can be connected to headphones or external audio.

● With MicroUSB power supply interface, through the mobile phone cable using mobile power or USB charger power supply, can also use 3.7V lithium battery, USB 5V power supply.

● Support TF card (mobile phone internal memory card), U disk playback mode.

● With speaker terminals without soldering, convenient wiring.

● Module design for easy modification.

Product Overview:

1) Support MP3 format, power on automatic playback, red LED indicator updates when playing status. 

2) Support U disk (tested 32G), TF card (tested 16G) playback mode; power on default TF card mode, if the TF card does not exist automatically jump to the U disk mode, and both devices have been installed, you can manually set up the playback mode, please see the key operation instructions.

3) Key can adjust the up and down track switching, volume +-, pause/play, mode switching, please see the key operation instructions.

(4) key to set the "single / full" cycle, power on the default full cycle, press the "Repeat" key to replace the cycle mode.

Key operation description

"Prev/V--" key: "short press" to switch "previous" song, "long press" to switch "volume down". "Volume down"

"Next/v++" key: "short press" to switch "next" song, "long press" for "Volume up"

"P/P/Mode" key: "short press" for "play/pause" switch, "long press" for U-disk, TF card "mode". P/P/Mode" key: "Short press" for "Play/Pause" switch, "Long press" for U-disk, TF card "Mode" selection.

"Repeat" key: "short press", for "single / full song" cycle switch (no long press function)

Attention:
1. The "long press" time is about 2S.

2. 5V power supply is recommended if you use USB flash drive mode, some USB flash drives don't support 3.7V power supply.

Product specification parameters:

Power supply range: 3.7~5.5V

Product size: 45mm*36mm

Exquisite double-layer board design, large copper laying, stable and reliable.