The product is a 2011 book titled "Obsessed with Star Trek: 2500 Questions" that is designed to test the knowledge of fans of the popular science fiction franchise. With 320 pages, this book covers a wide range of topics related to Star Trek, providing a comprehensive and detailed exploration of the series. Perfect for collectors and enthusiasts, this book offers a deep dive into the intricacies of the Star Trek universe, making it a valuable addition to any fan's collection. Battery works. Can be replaced by turning to the back cover and removing the small screw located over the sound module. Gently pry the case open.