Ventisonic&reg; U-disk audio player SD card voice module MP3 Sound module WTV020-SD-16P Arduino The product supports plug-maximum the 1G capacity of the SD card; Supports playback of 4Bit ADPCM format files; Automatically recognize the voice files; Loadable 6KHz to 32KHz, 36KHz sampling rate AD4 audio; Loadable 6KHz ~ 16KHz sampling rate WAV audio; 16bitDAC and PWM audio output; Can store up to 512 voice; WTV020-SD-20S, WTV020-SD-16P two module types; Support micro-processor and key control; Voice playback can call any paragraph; Power-down save operation data capabilities; Loaded voice without software assistance to the SD card can be placed directly on the voice; Support file combination play, including mute combination; Operating voltage: DC2.5 ~ 3.6V; Quiescent Current: 16uA (SD card is not inserted) Package Included: 1 X SD card voice module