Welcome to my store, Hope you have a pleasant shopping trip!Features: 1>.Support MP3 and WAV decoding format; 2>.Support sampling frequency (KHz) : 8/11.025/12/16/22.05/24/32/44.1/48; 3>.24-bit DAC output, dynamic range support 90dB, SNR support 85dB; 4>.Support memory card (TF card) up to 32GB, easy to replace audio files; 3>.Built in 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speaker; 6>.Support UART serial port control voice broadcast function.It can control playback, pause, selections, turn up and down volume and other functions, the largest selection of 65535 songs.The baud rate is 9600 bit/s. 7>.Support I/O trigger function, 8bit I/O ports can trigger 8 musics or 8 I/O combinations to trigger 255 songs. 8>.Support A_line single bus serial port control, which can control playback, pause, selection, turn up and down volume and other functions. 9>.Support 3 configuration I/O for mode selection to make 7 work mode. 10>.Support external volume potentiometer adjustment. 11>.Supports external USB download port.Specification: 1>.Model:DY-SV19T 2>.Work Voltage:DC 3.7V~5V 3>.Work Temperature:-25~85 4>.Work Humidity:5%~95%RH 5>.Size:30x23mmPacking List: 1 x DY-SV19T Voice ModelNote: 1.Please allow 1-2cm measuring deviation due to manual measurement.2.Due to the different monitor and light effect, the actual color of the item might be slight different from the color shown on the pictures. Please Understand, Thanks! Support UART serial port control voice broadcast function.It can control playback, pause, selections, turn up and down volume and other functions, the largest selection of 65535 songs.The baud rate is 9600 bit/s Built in 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speaker 24-bit DAC output, dynamic range support 90dB, SNR support 85dB Support I/O trigger function, 8bit I/O ports can trigger 8 musics or 8 I/O combinations to trigger 255 songs SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied. Support UART serial port control voice broadcast function.It can control playback, pause, selections, turn up and down volume and other functions, the largest selection of 65535 songs.The baud rate is 9600 bit/s Built in 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speaker 24-bit DAC output, dynamic range support 90dB, SNR support 85dB Support I/O trigger function, 8bit I/O ports can trigger 8 musics or 8 I/O combinations to trigger 255 songs SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied.