1. DFPlayer Mini MP3 module, can be directly connected to speakers2. Module with power supply battery, speakers, buttons can be used alone, can also be controlled through the serial port, as a module for Arduino UNO or any microcontroller with a serial port3. The module itself integrates MP3, WAV, WMA hard decoding, while the software supports TF card driver, FAT16, FAT32 file system4. Through a simple serial port command can be completed to play the specified music, and how to play music and other functions, without the need for cumbersome underlying operations, easy to use, stable and reliable5. Weight: about 2.8g6. Size: about 3 x 3cmTechnical specifications:1. Support sample rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/482. 24-bit DAC output, dynamic range support: 90dB, signal-to-noise ratio support: 85dB3. Fully support FAT16, FAT32 file system, support for 32G TF card, support for 32G U disk, 64M bytes of NORFLASH4. Various control modes are available. IO control mode, serial port mode, AD button control mode5. The broadcast language insertion function, you can pause the background music being played, the advertisement is played back to the background sound to continue playing6. Audio data sorted by folder, support up to 100 folders, every other folder can be assigned 255 tracks7. 30 levels of volume adjustable, 6 levels of EQ adjustableApplications:1. Vehicle navigation voice announcement2. Highway transportation inspection, toll booth voice prompts3. Train station, bus station inspection voice prompts4. Power, communication, financial business hall voice prompts5. Vehicle in and out of the channel verification voice prompts6. Border control channel voice prompts7. Multi-channel voice alarm or equipment operation guidance voice8. Electric sightseeing car traveling voice notification9. Automatic alarm for electromechanical equipment failure10. Voice alarm for fire fighting11. Automatic broadcasting equipment, timed broadcasting
