DY-SV5W is an intelligent voice module that integrates I/O subsection triggering, UART serial port control, and one-line single bus serial port control. It features an onboard 5W Class D amplifier circuit and can directly drive a 4ohm 3~5W speaker. Supports MP3 and WAV audio decoding formats. Maximum support for 32Gbit (4MByte) TF card memory; audio files 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. Color: blue. Material: PCB. Features: 1. Supports MP3 and WAV decoding formats. 2. Supports sampling frequencies (KHz): 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48. 3. 24-bit DAC output with dynamic range up to 90dB, signal-to-noise ratio up to 85dB. 4. Supports FAT16 and FAT32 file systems; compatible with up to 32Gbit (4MByte) TF card and 32Gbit (4MByte) U-disk. 5. Supports UART serial port control for voice broadcast functions including play, pause, track selection, volume adjustment; supports up to 65535 tracks. Baud rate: 9600 bps. 6. Supports I/O trigger function; 8-bit I/O ports can trigger up to 8 audio tracks or combinations for up to 255 triggers. 7. Supports one-line single bus serial port control for play, pause, track selection, and volume control. 8. Supports 3 configuration I/O pins for mode selection, enabling 7 operation modes. 9. Built-in 5W Class D amplifier circuit; capable of directly driving a 4ohm 3~5W speaker. Specifications: - Product Name: DY-SV5W Voice Playback Module - Model Number: DY-SV5W - Operating Voltage: DC 5V Note: Due to different production batches, the appearance, color, and labeling of the product may vary slightly. This does not affect functionality. Package Contents: 1 x DY-SV5W Module Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual product. Measurement error is allowed within +/- 1-3cm.