... Asia, Europe, South America,Central America and Africa.Voice book/Talking Book/Sound book/Recordable book/Recording ... or the chapters and sections;Sound bar with custom voice and 4/ 6/ 8 keys; Sound file ... ,add funs to learning.Audio can be:animal voice,vehicle sound,music and phrases programmed,etc. with ... wrapped the book.Operation:turn on the switch button,the pre-recorded sounds can be heard when ...