... by:AG10*3PCS/aa/aaa battery7.function:can be used in plush toy,stuffed toy,electronic toy,educaiton books ,advertsing magazine ... to play sound or flash General information for plush teddy speaker/music box 1.message:voice,music,melody,sound are avaiable2 ... :pre-recorded or recordable with LED flash(optional)3.components:speaker,voice ic,battery,circuitry4.power supply:AG13,AG10,AG3 button ...