1. Support MP3 and WAV decoding formats. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48. 2. 24-bit output, dynamic range support 90dB, signal-to-noise ratio support 85dB. Fully support FAT16/FAT32 file system, maximum support for 32G TF card. 3. Comes with 5W class D power amplifier, can directly drive 4ohm, 3-5W speakers. UART serial port control voice broadcast function, can control playback, pause, song selection, volume addition and subtraction, etc., the largest selection of 65,535 songs, baud rate of 9600bit / s. 4. Support IO trigger playback function, 8 IO ports trigger 8 tracks or 8 IO ports to trigger 255 tracks. Support One_line single bus serial port control, can control playback, pause, song selection, volume addition and subtraction and other functions. 5. Support 3 configuration IO for up to 7 working mode selection, dial switch settings are simple. Type: Voltage Regulator Model Number: DY-SV8F Voice playback module Application: MP3/MP4 Player colour:Blue Material:plastic size:40 x 40mm Package Contents: 1 x Voice playback module Only the above package content, other products are not included. Note: Light 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.