... with specially voice or music. Gift box with light sensor module When prepare gift to your friends,family,Colleague ... can help you to do,when open the box,music will send out.There is a sensor ... module inserted into the box,it is actived by light.The size of ... format: mp3 or wav. OPEN BOX,MUSIC WILL SEND OUTRED WINE BOX IRON BOX OTHERS PAPER GIFT BOX Gift box with light sensor module