... .If you press REC again,the old message is cleared,and new message is recorded)Normally,the pre-recorded play ... , voice, vibration, PIR, etcFunction: pre-recorded or recordable, with LED flash (optional)Messages: voice, music, and sound, customized sounds are ... seconds, even more if requiredComponents: PCB, IC, speaker, microphone, LED indicator, batteries, wire harness, switch, more or less for ...