The Three Investigators - The Whispering Spy

Where will the next handover take place? Is the crime scene being discussed? With The Three Investigators listening device, you can get important information like real detectives. The detailed instructions show you how. Before the first eavesdropping, conduct a test run with different sound sources and obstacles. The directional microphone with headphones amplifies all sounds and makes them audible through doors and walls. The headphones keep the surveillance silent. With many tips and tricks from Jupiter, Pete, and Bob for secret investigations.

Contents: Listening device, instructions.

Required additional materials: 1 x 1.5-volt LR03 (AAA, micro) batteries. Small Phillips-head screwdriver.


Manufacturer / Responsible person:
Franckh-Kosmos Verlags-GmbH & Co. KG, Pfizerstrasse 5-7, 70184, Stuttgart, Germany, kosmos.de/servicecenter