Function introduction1. Support bluetooth audio, BLE data transmission, U disk playback, TF card playback, SPIFLASH. hold MP3, WAV, FLAC, APE format decoding2. Serial port AT command control.Support to modify baud rate to modify bluetooth name, specify device playback, and cell phone data passthrough3, support BLE and SPP dual-mode data transmission, at the same time can play bluetooth audio, no conflict4, support bluetooth call, multi-button control, last music, next music, play pause, tuning volume and other simple functions5, support to get the full file name of play serial port specified path play, loop or single play6. Support 128KBS recording function.Recording to TF card or U disk, recording delete playback and so on7, rich use information, reference PCB, use video tutorial, mobile phone passthrough video tutorial, serial port AT video tutorial8. Super simple peripheral,5 capacitors can be completed9, easy docking already existing APP, or develop WeChat applet.Mobile phone control10. We have made the functional firmware ourselves, which is very flexible. Even if there is a need that cannot be met, we can communicate and develop itFunctional description(Support AT serial command control)1,16 bit Stereo dac with headphone amplifier, SNR > = 95 db2, no crystal vibration load capacitor, the chip automatically generates bluetooth MAC address, no rolling burningMusic features:1, support MP3, WAV, WMA, FLAC, AAC, APE format decoding2. The maximum support is 128G usb flash drive and TF card, supporting breakpoint memory and track memory functionsSize: 60*40.3mmPackage included : 1PC