voice recording module with Microphone,Suitable for 60-480s;Suitable for paper card voice recording moduleFunaction:Message: voice, music and sound are available Function: message recording (optional) Voice recording duration: 60s, 100s, 120s, 240s and 480s Component: PCB, voice chip, a speaker, MIC, LED indicator and batteries Battery: 2pcsCR2032 OEM and ODM orders are welcome