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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. Onboard 64Mbit (8M bytes) Flash memory, no memory card required
5. Comes with 5W class D power amplifier, which can directly drive 4 ohm/3-5W speakers
6. The UART serial port controls the voice broadcast function, which can control the functions of play, pause, song selection, volume addition and subtraction, and the selection of songs can reach 65535 songs, and the baud rate is 9600 bit/s
7. Support IO trigger playback function, 8 IO ports can trigger 8 tracks individually or 8 IO ports can trigger 255 tracks in combination
8. Support One Line single-bus serial port control, which can control functions such as play, pause, song selection, volume addition and subtraction, etc.
9. Support 3 configuration IOs for up to 7 working modes selection, DIP switch settings, easy to operate
10. Working voltage: DC 5V
11. Size: about 4x3.5cm
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