ITEM NAME:Voice Recording ISD1820 Playback Module Sound Recorder Loudspeaker With E9I4.First, the main chip: ISD1820. PLAYL key: jog mode playback, press and hold the playback, release to stop playing;. 1, easy to use 10 seconds voice recording. REC key: recording button, press and hold to record, release the button to stop recording;.
