PRODUCT FEATURES
◎Support 1GB SD card max. or SPI flash 64MB max.
◎Support 4 Bit ADCPM format files.
◎Sampling rate from 6kHZ to 36KHZ for AD4 voice format.
◎Sampling rate from 6KHz～16KHz for WAV voice format
◎16 Bit DAC / PWM audio output.
◎Key mode， MP3 mode and two line serial mode are optional .Can choose one of them
◎ Copy voice files to SD card by PC.
◎ Working voltage: DC2.7～3.5V
◎ Quiescent current:: 3uA