1,Baby's music pad used in children's books 2,the sound and quantity of buttons can be designed 3,OEM 4,ABS material 1,Baby's music panel can be used together with Children's Picture Books.2,Sounds including the animal series,traffic tool series ect.or the customer sound.Sounds can be heard when pressing the relative relative.3,The qulitity of sounds can be designed by customer4,Fit for children ...