MP3 player motherboard with radio bluetooth microphone

Front panel introduction:

Microphone: wired microphone jack

TF CARD: self-flying TF card slot

USB: U disk jack

Display: digital display

IR: infrared remote control receiver

AUX: 3.5 socket audio input port, insert AUX detection and automatic playback;

DC 5V: Type-c power input 5V 2A

OFF/ON: power switch                

Panel Size: 94x35mm

Hole slot assembly size: 75x27mm

Screw hole spacing: 85mm

PCB Depth: 35mm

Button operation:

VOL- Button:

Short press for the previous song;

Long press for volume reduction;

Double click for the previous folder;

PAUSE Buttons:

In USB/CARD/BT/AUX/FM mode, short press once to pause and play;

In radio mode, long press to automatically receive and store radio stations, and automatically play the radio of the first frequency point of the stored radio station after receiving the station;

VOL+ button:

Short press for the next song;

Long press to increase the volume;

Double click for the next folder;

MODE button:

Short press once: function conversion: Bluetooth-CARD-USB-radio-audio input;

After plugging in USB/CARD, in BT/FM/microphone mode, long press MODE button to record to USB/CARD in playback mode;

Accessories:

Remote control; 2P+2P+2P+1P cable;