Voice recording module with Recording IC, Suitable for paper card Voice recording module Features: l Message: voice, music and sound are available l Function: message recording (optional) l Voice recording duration: 6s - 60s l Component: PCB, voice chip, a speaker, MIC, LED indicator and batteries l Battery: 3 x AG10 ; Battery use time: over 300 timesl sound message file in Mp3 or WAV format is ...