Invention Grant
US07809576B2 Customized audio playback storybook with light activation 有权
定制音频播放故事书与光激活

Customized audio playback storybook with light activation
Abstract:
A unit for providing an interactive, light-activated, voice recorder unit for a book wherein said interactive voice recorder unit automatically initiates a playback mode when the front cover of a book is opened and light enters the unit.
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