The module is a compact and inexpensive MP3 module that can be directly connected to speakers. The module can be used separately with the power supply battery, speaker, and buttons, or can be controlled through a serial port as a module for compatible with Arduino UNO or any microcontroller with a serial port.
The module integrates hardware decode of MP3, WAV, and WMA. The software also supports TF card drivers and supports FAT16 and FAT32 file systems. Playing specified music and how to play music can be completed through simple serial port commands, without the need for tedious low-level operations. It is easy to use, stable and reliable.

Specifications:
1. Supports sampling rates (KHz): 8/11.025/12/16/22.05/24/32/44.1/48
2. 24-bit DAC output, dynamic range support: 90dB, SNR support: 85dB
3. Fully supports FAT16, FAT32 file system, maximum support 32G TF card, support 32G U disk, 64M bytes for NORFLASH
4. A variety of control modes are available. IO control mode, serial mode, AD key control mode
5. Advertising sound waiting feature, you can pause the music being played. when advertising is over in the music continue to play
6. The audio data is sorted by folder; supports up to 100 folders, folders can assign every 255 Tracks
7. 30 level adjustable volume, adjustable EQ 6

Application:
Car navigation voice broadcast
Road transport inspectors, toll stations voice prompts
Railway station, bus safety inspection voice prompts
Vehicle into and out of the channel verify that the voice prompts
Multi-channel voice alarm or equipment operating guide voice
The electric tourist car safe driving voice notices
The automatic broadcast equipment, regular broadcast