M15B
Specifications
Model: M15B Bluetooth version 5.0. Support lossless music playback, with power protection function
(reverse connection will not burn the motherboard and the display will not light up)
Infrared receiving: can match infrared remote control
TF: Card slot connected to TF memory card (maximum support 32GB);
SCREEN: Digital color screen display, red (color screen customization can be supported);
AUX: Audio input interface
USB interface: connect to U disk (maximum support 32GB);
VOL-: Short press the previous song in the USB/SD state; short press the previous station in the FM state, and long press the volume to decrease.
SCAN: Short press to play/pause in the USB/SD state, long press to automatically scan for radio stations in the FM state;
VOL+: Short press a song in the USB/SD state; short press a radio station in the FM state, and long press the volume to increase;
MODE: When there is SD card and U disk: the switching sequence is USB→SD→FM→AUX→USB; when there is only U disk: the switching sequence is USB→FM→AUX→USB; when there is only SD card: the switching sequence is SD→FM →AUX→SD. ;

Main control IC: AB5362B
Bluetooth IC: AB5362B Bluetooth version is 5.0
Music format: MP3 / WMA / WAV and other lossless formats
Radio FM frequency: 87.5-108.0 MHZ
Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control connection / 9V-12V
About the structure: Panel size: 106 * 25 MM, the two sides of the panel are the screw hole positions, the width of the board is 19.8mm, the depth of the board is 24mm