... OEM or ODM paper shopping bag/music bags Promotional bags with music chip 1,recording time :0-270sec2,open bag ... or ODM4,It is for gift,promotion.5,Custom sound with mp3 or wave file format is ok.6,Custom ... batteries .10, The surface of bag will be dealed with matt finish,gloss finish ,lamination or others.11,Material:Copperboard ... you close bag music will stop. musical paper bags with custom printing