Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/4824 bit DAC output, dynamic range support: 90dB, SNR support: 85dBFully supports FAT16 and FAT32 file systems. It is a 32G TF card that supports 32G USB flash disk and 64M byte NORFLASHMultiple control modes are available. IO control mode, serial port mode, AD key control modeThe radio language insertion function can pause the background music being played. After the advertisement is played, return to the background tone and continue playingapplication:1. Car navigation voice broadcast2. highway transportation inspection, toll station voice prompt3. Voice prompt for safety inspection of railway station and bus station4. Voice prompts in business of electric , communication and finance5. Voice prompt for vehicle entrance and exit channel verification.6. Voice prompt of frontier inspection channel7. Multi-channel voice alarm or equipment operation guidance voice8. electric sightseeing bus safe driving voice notice9. mechanical and electrical equipment failure automatic alarm10. fire voice alarm prompt11. automatic broadcasting equipment, regular broadcast.Type: Audio moduleFeature 1: mini player moduleFeature 2: MP3 moduleFeature 3: Audio voice module boardcolor:BlackMaterial:PCBPackage Contents:1 x ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.