Technical Specifications: 1. Supports sampling rate (KHz): 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48. 2. 24-bit DAC output, dynamic range support: 90dB and SNR support: 85dB 3. It can easily support FAT16 and FAT32 file system. Supports 32G TF card, 32G support U disk, NORFLASH 64M bytes. 4. Various control modes are available. IO control mode, serial mode, AD key control mode 5. Broadcast language spot function can pause background music played.The ad finished playing background sound and finished playing. 6. Audio data is sorted by folder, support 100 folders, folder can be assigned per 255 track. 7.30 level variable volume, adjustable EQ 6