voice chip 1,COB board size:30mmx40mm 2,time:0-270seconds 3,with double-face adhesive paper 4, ... chip1,COB board size:30mmx40mm2,time:0-270seconds3,with double-face adhesive paper back4,pull tab switch5 ... customizable recording sounds and message to us with mp3 or wave file format.10,It is very ... suitable for your greeting card,postcard,magazine,envelope or other ,Because you can direct tear the ...