... the child. We have prepared a lot of sound books, for example , Mathematic , English learning, Classic Fairy Tales , Chinese learning , game ... . Repeat3. Volume control4. Page-turning5. AAA battery6. Listening with EAR phone or external device Specification:1. OID Head, use sonix 4th ... . Earphone, 3.5 mm standerd eraphone slot;5. AAA Battery 6.For 2-8 agesBooks(we can change the language as customer ...