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 o decoding formats. Supports up to 32Gbit (4MByte) TF card storage. Can connect to a computer via USB cable to update o files on the TF card. Includes 3.5mm o interface, U disk interface, Micro-USB download interface, and button module. Module 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 TF cards and U-disks up to 32Gbit (4MByte). 5. UART serial port control supports playback functions including play, pause, track selection, and volume adjustment. Supports up to 65535 tracks. Default baud rate: 9600 bps. 6. I/O trigger function with 8-bit I/O ports. Can trigger up to 8 o files individually or use combinations to trigger up to 255 options. 7. ONE-line single bus serial control supports play, pause, track selection, volume control, and other functions. 8. Supports 3 configuration I/O pins for mode selection, enabling 7 different operation modes. 9. Built-in 5W Class D amplifier, 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 Includes: 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 color variations between the image and the actual product. Measurement error allowed: +/- 1-3cm.