Star Trekfans and collectors will love this one-of-a-kind, mini-size collectible tricorder with light and sound. The tricorder is a multifunction handheld device used for sensor scanning and data analysis. Kit includes:Light-up tricorder with sound48-page book on the history of tricorders and full-color photos | Star Trek: Light-and-sound Tricorder by Chip Carter, Paperback | Indigo Chapters