DY-SV5W is an intelligent voice module that integrates I/O trigger, UART serial port control, and one-line single bus serial port control. It features a built-in 5W Class D amplifier circuit and can directly drive a 4ohm 3~5W speaker. Supports MP3 and WAV audio decoding formats. Compatible with up to 32GB (4GB) TF card for storing audio files, which can be updated by connecting to a computer via USB cable. Includes 3.5mm audio interface, U disk interface, Micro-USB download interface, and button module in one unit. Supports sampling frequencies of 8/11.025/12/16/22.05/24/32/44.1/48 KHz. Features 24-bit DAC output with a dynamic range of up to 90dB and SNR of up to 85dB. Compatible with FAT16 and FAT32 file systems. Supports TF cards and U-disks up to 32GB (4GB). Enables UART serial port control for voice broadcast functions including playback, pause, track selection, and volume adjustment. Supports up to 65,535 audio files. Default baud rate is 9600 bit/s. Supports I/O trigger function with 8-bit I/O ports, allowing individual triggering of 8 songs or combination triggering of up to 255 songs. Supports one-line single bus serial control for playback, pause, selection, volume control, and other functions. Includes 3 configurable I/O pins for mode selection, enabling 7 different operation modes. Built-in 5W Class D amplifier circuit capable of directly driving a 4ohm 3~5W speaker. Product Name: DY-SV5W Voice Playback Module Model Number: DY-SV5W Operating Voltage: DC 5V Color: Blue Material: PCB Memory Card Included: 1GB Package Contents: 1 x Module 1 x Memory Card Note: The appearance, color, and labeling of the product may vary slightly between batches, but this does not affect functionality. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1-3 cm.