... :6~300s 5.Sound chip used for cards Promotion Light sensor music recording greeting card1.Material:250gsm art paper with ... music or sound card .TEST PASS:ROHS TESTinclude :battery , ic board , cmos chip .Greeting CardsMusical chip with music playing or ... duration: 6seconds to 30 seconds, even more if requiredComponents: PCB, IC, speaker, microphone, LED indicator, batteries, wire harness, switch, more ...