... music 3,OEM 4,Children's education Words learning sound book with sound module with funny pictures, ideal choice for children's ... 1, 000gsm gray board, 250gsm paper, 800gsm gray board, and sound bar(ABS plastic material) Finishing: UV varnishing and glossy lamination ... the same time, reading the picture book. The batteries can be changed .Customized sizes, sound and printings are welcome Function:For ...