... 3PCS/aa/aaa battery7.function:can be used in plush toy,stuffed toy,electronic toy,educaiton books ,advertsing magazine and all kinds of promotion ... timing,tempreture,PIR, activated the sound9.Application:dolls,stuffed toy,plushed toy,electronic toy,soft toy,pillow,music gift box/bags,gift,promotion10.OEM/ODM ... for plush toytype four:USB download music inserts for plush toy electronic music box for plush ...