... 6~300s 5.Sound chip used for cards Promotion Light sensor music recording greeting card1.Material: ... printing,outside blank white sticking on the magazine,toy,book,catalog,etc5.Battery:2-3pcs of AG10 ... 30 seconds. It uses for greeting card, magazine, toy, catalog, etc...When you open the card play ... module and push button and stick into place.Promotion music greeting card for giftFunction for option:1 ...