Support MP3, WAV decoding .Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48.24-bit DAC output, dynamic range supports 90dB, signal-to-noise supports 85dB.Fully support FAT16/FAT32 file system, maximum support 32G TF card.Comes with 5W class D amplifier, which can directly drive 4 ohm, 3~5W speakers.The UART serial port controls function, which can control playback, pause, song , volume addition and subtraction, etc. The maximum of songs is 65535 songs, and the baud rate is 9600bit/s.Support IO trigger playback function, 8 IO ports individually trigger 8 tracks or 8 IO ports trigger 255 tracks in combination.Support One_line single-bus serial port control, which can control functions such as play, pause, song , volume addition and subtraction.Support 3 configuration IOs for up to 7 working modes , and the DIP switch setting is simple.Product Name:DY-SV5W Voice Playback ModuleProduct Number:DY-SV5WWork Voltage: DC 5VWorking Temperature range:-20~85 CelsuisWorking Humidity range: 0%-95%RHColour: blueMaterial: PCB+metalSize: 40x40x9mmPackage Contents:1 * DY-SV5W Voice Playback ModuleOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.