... book for children's book ... text on the books.Detailed information for magnic sound book , kids sound ... for children education gift!Components:electronic sound panel/button+ paper booksElectronic sound panel/button:Material:ABSSize:13*5*2cmMessage:Voice, music, sound, animal ... sound, traffic sound, real-man voice,story in various kinds of language etc customized messageMessage duration:1-60s for ...