What are the main features of the [product]? Your response should contain at least 2 placeholders represented by square brackets, such as [product]. Highlight at least 1 section in your answer with markdown, i.e. *highlighted section*. Your answer must contain a title, wrapped in double angular brackets, such as <<Main Features of [product]>>. In your response, the word "feature" should appear at least 3 times. Include keywords [innovative, user-friendly, efficient] in the response.

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