DY-SV5W is an intelligent voice module. It supports I/O triggering, UART serial port control, and single-wire bus serial port control. Onboard 5W Class D amplifier circuit can directly drive 4Ω, 3–5W speakers. Supports MP3 and WAV audio decoding formats. Maximum supported storage: 32GB microSD card (FAT16/FAT32 file system). Audio files can be updated via USB connection to a computer. Includes 3.5mm audio input interface, USB flash drive interface, Micro-USB programming interface, and onboard push-button module. Color: blue. Material: PCB. Features: 1. Supports MP3 and WAV decoding. 2. Supports sampling rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, and 48 kHz. 3. 24-bit DAC output with dynamic range up to 90 dB; supports minimum 85 dB. 4. Compatible with FAT16 and FAT32 file systems. Supports up to 32GB microSD cards and 32GB USB drives. 5. UART serial control supports playback, pause, track selection, volume up/down, etc. Supports up to 65,535 tracks. Baud rate: 9600 bps. 6. I/O trigger function: 8-bit I/O ports support triggering up to 8 audio files or 255 combinations. 7. Single-wire bus serial control supports playback, pause, track selection, volume up/down, etc. 8. Three configurable I/O pins enable seven operating modes. 9. Built-in 5W Class D amplifier; directly drives 4Ω, 3–5W speakers. Specifications: - Product Name: DY-SV5W Voice Playback Module - Model Number: DY-SV5W - Operating Voltage: DC 5V Note: Due to manufacturing variations, appearance, color, and labeling may differ slightly. This does not affect functionality. Package includes: 1 × DY-SV5W module only. Other accessories are not included. Note: Screen/display differences and lighting conditions may cause slight color variation between images and actual product. Measurement tolerance: ±1–3 cm.