AOICRIE 4pcs DFPlayer Mini MP3 Player Module for Arduino DIY Voice Module with TF Card and U Disk Support

The DFPlayer Mini MP3 Player For Arduino is a small MP3 module with an simplified output directly to the speaker. The module can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with an or any other with RX/TX capabilities.
Specifications:
Input Voltage: DC 3.2~5.0V
supported sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48
24 -bit DAC output, support for dynamic range 90dB , SNR support 85dB
fully supports FAT16 , FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NORFLASH
a variety of control modes, I/O control mode, serial mode, AD button control mode
advertising sound waiting function, the music can be suspended. when advertising is over in the music continue to play audio data sorted by folder, supports up to 100 folders, every folder can hold up to 255 songs
30 level adjustable volume, 6 -level EQ adjustable
Control Mode:
?1? Serial Mode
Support for asynchronous serial communication mode via PC serial sending commands Communication Standard:9600 bps
Data bits :1
Checkout :none
Flow Control :none
?2? AD KEY Mode
We use the AD module keys, instead of the traditional method of matrix keyboard connection, it is to take advantage of increasingly powerful MCU AD functionality, Our module default configuration 2 AD port, 20 key resistance distribution.
?3? I/O Mode
Application:
1, car navigation voice broadcast
2, road transport inspectors, toll stations voice prompts
3, train, bus safety inspection voice prompts
4, electricity, communications, financial operating room voice prompts
5, automatic broadcast equipment, regular broadcast
Package Included:
4 x DFPlayer Mini MP3 Player Module

• The DFPlayer Mini is a small and low cost MP3 module player with an simplified output directly to the speaker. The module can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with an or any other with RX/TX capabilities.
• The DFPlayer perfectly integrates hard decoding module, through a simple serial port, which supports common audio formats , you can play the designated music without any other tedious underlying operations. The module perfectly integrated hardware decode MP3, WAV, WMA.
• SPECIFICATION Supported sampling rates (kHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48 , 24-bit DAC output, support dynamic range: 90dB, SNR support: 85dB.
• The software supports TF card driver, maximum support 32G of the TF card; support FAT16, FAT32 file system; support 32G of U disk; 64M bytes NORFLASH.
• IO control mode, serial mode, AD key control mode are available to choose. A variety of applications such as Vehicle navigation voice, multichannel voice alarm, automatic alarm for equipment failure, timed broadcasting.radio spots language function, you can pause the background music being played. Advertising finished playing background sound continues to play back.