1. Multiple decoding formats: Supports MP3 and WAV decoding, compatible with various sampling rates, and offers excellent sound quality. 2. High-power amplifier output: Integrated 20W Class D amplifier, driving 4Ω/8Ω speakers, with powerful sound. 3. Ultra-wide operating voltage range: Supports 6 to 35V DC input, adapting to various power supply environments. 4. Rich control methods: UART, IO trigger, One_line single bus control, flexible and convenient. Built-in large-capacity storage: 64Mbit on-board Flash, no memory card required, convenient for updating audio files. 5. Product Introduction: This intelligent voice playback module integrates seven working modes including IO segmented triggering, UART serial port control, ONE_line single-bus serial port control, standard MP3, etc., and simple dip switch Settings. On-board 20W Class D power amplifier Supports MP3 and WAV decoding formats, has an on-board 64Mbit (8M bytes) Flash storage, and can be connected to a computer via a USB data cable to update the Flash stored audio files. Specification: Supports MP3 and WAV decoding formats. Support the sampling rate (KHz): 8/11.025/12/16/22 05/24/32/44.1/48. 24-bit DAC output, dynamic range supported by 90dB, signal-to-noise ratio supported by 85dB. Ultra-wide operating voltage ranging from 6 to 35V DC. Integrated 64Mbit (8M bytes) FLASH memory, no memory card required. Integrated high-power amplifier output, with a maximum output of 20W when driving a 4Ω speaker and 10W when driving an 8Ω speaker. The UART serial port control voice broadcast function can control playback, pause, song selection, volume increase or decrease and other functions. The maximum number of selected songs is 65,535, with a baud rate of 9600 bit/s. Supports one-to-one IO trigger playback function, where 8 IO ports trigger 8 tracks