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 4Ω/8Ω 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 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 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.