Descriptions Main chip ISD1820Size 38 5 x 42 8mmOperating voltage DC 3 5VFeatures Easy to use 10 second voice recording and playback High quality natural voice restore Can be used as a megaphone module With loop play jog play single play function control This module can directly drive 8 ohm 0 5W small speakers Power supply 3 5V can be connected to the pin Record and playback control mode key control or control line IO has been led out Key control recording and playback operation method REC key recording button press and hold to record release the button to stop recording RLAYE key trigger mode playback click to play the current voice of the entire paragraph PLAYL key jog mode playback press and hold to playback release to stop playing RPL jumper loop play mode control can be played circularly FT jumper through control it allows the microphone voice directly to the speaker to playback Package included 1 x Voice module1 x 0 5W 8R speaker1 x XH2 54 cable