1. Multiple decoding formats: Supports MP3 and WAV decoding, compatible with sampling rates, and offers excellent sound quality. 2. High-power amplifier output: Integrated 20W Class D amplifier, driving 4/8 speakers, with powerful sound. 3. Ultra-wide operating voltage range: Supports 6 to 35V DC input, adapting to 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 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 4 speaker and 10W when driving an 8 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 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 individually or 8 IO ports combine to trigger 255 tracks. Supports One_line single-bus serial port control, which can control functions such as playback, pause, song selection, volume increase and decrease, etc. Supports up to 7 working modes to choose from with 3 configuration IO, dip switch Settings, and simple operation. 8-channel IO design for ESD protection Specification:Micro-USB interface Color:Black Material:plastic Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.