"International Spy Museum", Undercover Listening Device : It's Not Eavesdropping, It's Espionage!

The 32-page book, based on the resources of the International Spy Museum, provides invaluable tips on how to go undercover with this sound-amplifying listening device to help the reader obtain covert information at home, school, or at the office. The kit, which appeals to both children and adults, includes a fully-functioning listening device.