1. Support MP3, WAV decoding format.
2. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48.
3. 24-bit DAC output, dynamic range supports 90dB, signal-to-noise ratio supports 85dB.
4. DC 6~35V ultra-wide working voltage.
5. Support up to 32G memory card, can connect to computer via USB data cable to update and store audio files.
6. Integrated high-power amplifier output, driving 4?? speakers up to 20W, driving 8?? speakers up to 10W.
7. The UART serial port controls the voice broadcast function, which can control play, pause, song selection, volume addition and subtraction and other functions. The selection of songs is up to 65535 songs, and the baud rate is 9600 bit/s.
8. Support IO one-to-one trigger playback function, 8 IO ports can trigger 8 tracks individually or 8 IO ports can trigger 255 tracks in combination.
9. Support One_line single-bus serial port control, which can control functions such as play, pause, song selection, volume addition and subtraction.
10. Support 3 configuration IOs for up to 7 working modes selection, DIP switch settings, easy to operate.
11. 8-way IO design ESD protection