Supports sampling rates (KHz): 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48. 24-bit DAC output, supports dynamic range: 90dB, signal-to-noise ratio: 85dB. Fully supports FAT16 and FAT32 file systems, supports up to 32GB TF card, USB drive up to 32GB, 64MB NORFLASH. Multiple control modes available: IO control, serial port, AD button control mode. Radio spot function allows pausing background music during announcements; background music resumes automatically after announcement. Color: Black Material: Metal Audio data organized by folder, supports up to 100 folders, each folder can contain up to 255 tracks. 30-level adjustable volume, 6-band adjustable EQ. Application: 1. Car navigation voice guidance 2. Road transport inspection, toll station voice prompts 3. Bus safety inspection voice prompts 4. Power, telecommunications, financial operating room voice alerts 5. Vehicle entry and exit channel verification prompts 6. Channel voice prompts 7. Multi-channel voice alarm or voice-guided equipment operation 8. Electric sightseeing bus safety announcements 9. Electrical and mechanical equipment fault alarms 10. Fire alarm voice alerts 11. Automated equipment operation Package included: 1 x DFPlayer Mini MP3 Player Module Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement allowance: +/- 1-3 cm.