☆Support WAV, WMA, MP3 audio format.
☆Three kinds of memory for option: SPI-FLASH, micro SD card, USB flash disk.
☆Audio content can be replaced. Max support 32G micro SD card and 32G U disk.
☆Support file name play, file index play, file name or file index play in the folder.
☆Can replace the audio files of micro SD card through USB interface.
☆Can copy the audio files of micro SD card or U disk to SPI-Flash, offline replace audio.
☆Support key control and asynchronous serial(UART) communication at the same time. ☆General standard interface protocol.
☆Can query the song name current playing, current song’s index number, current working status, current volume setting, the number of files in memory and so on.
☆Support inter-cut among different kinds of memory.
☆Support USB sound card function.
☆Built in 1W amplifier, directly driving 8ohm/1W speaker, 32 volume ranges.
☆DC 3V~5.2V power supply.