JQ-D187BT TPA3116 50W+50W+100W CLASS D Audio Amplifier Board 2.1 Channel

 Bluetooth Decoder DC 6V-24V HiFi MP3 Player Module USB FM AUX

Model: D187BT (microphone interface): Version 2.1
Voltage: DC 12V, current above 2A
Power: 2 * 50W+100W
Main control IC: AB5362B
BT IC: AB5362B
BT version: 5.3
Amplifier: TPA3116D2; Use two; Power: 2 * 50W+100W
Features: BT calling function, microphone interface function, recording function, folder switching function, TWS function
Music format: MP3/WMA/WAV/FLAC/APE lossless format music
Radio FM frequency: 87.5-107.5 MHz
Support Function Introduction: Supports MP3/USB/TF/LINE IN/FM/BLUETOTH/Remote Control Connection
Support adjustment of treble/bass/microphone sound size/microphone reverberation
Regarding the structure: Panel dimensions: length 131 * width 49 MM, with screw holes around the panel and a depth of 82 MM

Recording function description:
1. Press and hold the MODE button to start recording, then press and hold the MODE button again to cancel the recording function and play the recording file;
When recording, it is more necessary to connect a storage device, such as a USB flash drive or TF card;
3. Under the storage device, such as a USB flash drive or TF card, long press the PLAY/PAUSE button (play/pause) to enter the recording folder and play the recording file;
Detailed button operation:
1. TREBLE/BEASS/ECHO/MIC.VOL: Switch between microphone sound size C/microphone reverberation E/high frequency H/low frequency b; Switch to mode first, press the previous or next song to adjust, and confirm automatically after 3 seconds if there is no adjustment;
2. PREV button (previous track): In MP3 mode, VOL – short press for previous track, long press for volume reduction; Short press in FM mode to move up one station number; Short press under BT function to play the previous song on BT;
2. AUTO button (play/pause): Short press AUTO in MP3 mode to play/pause; Short press to play/pause in FM mode, long press to automatically receive and coexist channels; Short press to play/pause under BT function, long press TWS function
3. NEXT button (next track): In MP3 mode, short press VOL+for next track, long press for volume increase; Short press in FM mode to downgrade one station number; Short press under BT function to switch to BT next track;
4. MODE button: Switch between USB/TF card/audio input/BT function in sequence; Long press is for recording function;