Features:
1>.DC 3.7-5V wide voltage power supply
2>.Play mode: Play/Pause,Next/Prev, Single/Loop and so on
3>.8-Channel trigger interface, triggering up to 255 music
4>.Low level trigger version and directly using GND as a trigger sign
5>.Supports MP3 and WAV decoding formats, and audio file sampling rates up to 48KHz
6>.Reserved TF card Socket
7>.Audio files can be replaced by connecting the computer with a USB data cable
8>.Equipped with a 5W Class D power amplifier, it can directly drive 4-8ohm, 1-5W speakers
9>.CON1-CON3 pins are used to set 8 trigger working modes
10>.Externally adjustable potentiometer to adjusts volume

Parameters:
1>.Work Voltage:DC 3.7V-5V
2>.Work Mode: 7-Kinds
3>.File Format: MP3,WAV
4>.Speaker Power: 0.5W-5W
5>.Pin distance:2.54mm
6>.Output Impedance: 4ohm-8ohm
7>.Memory:32G(TF Card Not Included!)
8>.Audio Output: Active output
9>.Adjust Volume: Yes(Need connect a potentiometer)
10>.Trigger Sign: Low Level Sign(NPN)
11>.Work Temperature:-20℃~85℃
12>.Work Humidity:5%~95%RH
13>.Module Size:30*23mm

Note:
1>.It is a low-level trigger, and the input port can input a GND sign.
2>.The power must be restarted after switching modes.
3>.The music file name must be a 5-digit number, for example: 00001.mp3 ~ 00009.mp3
4>.Each input port can only control 1 music file such as S3 just can control music file 00003.mp3.
5>.Please use a USB data cable, do not use a USB power cable, otherwise the computer will not recognize it.

Package:
1>.1* 5W Mono Voice Playback Module