ISD1820is a small Voice Recorder and Playback module that can do the multi-segment recording. The user can achieve a high quality of recording (for 8 to 20secs) for each application with the adjustment of the on-board resistor. This Voice Recorder/Playback module is designed with embedded-Flash memory, which can hold data for up to 100 years and erase/record the life cycle up to 100,000.SpecificationsMain chip:ISD1820Working voltage: DC3-5VCan drive 8 Ohm 0.5W speakers directlyOn-board microphone.FeaturesRecord and playback up to 10 seconds of audio.Pushbutton and MCU controllableEdge or level activated playbackBuilt-in microphoneOn-chip 8 ohm speaker driverDuration and sample rate can be modified up to 20 seconds with resistor changeAuto power down modeDocuments:Tutorial