The listening device is not only used by spies and diplomats. They are used in detective agencies, in research activities, and simply to wiretap their apartments in the absence of the owners. And besides, it's curious to know what they say about you in your absence.
Instructions
Step 1
A simple listening device can be assembled from an old mobile phone. You just need to disassemble the phone and remove the vibrating alert from the board, instead solder the transistor that closes the raise button. It turns out auto-picking up the tube with listening. And then everything is simple. It is necessary to leave the phone in the listening place and call it. The phone picks up the phone, you can listen to everything that is happening and everything that is being said through your phone.
Step 2
Another method of making listening devices is an elementary microelement bug. Such a homemade bug consists of a power supply, an antenna and a microphone located in some small case.
Step 3
So, take a piece of plastic and cut out the required dimensions for the base of the bug with a knife. Take into account in which case you are using for it. It can be a mobile phone, a pack of cigarettes, a powder box.
Use M2 screws to secure the battery, spiral antenna and listening device PCB to the base.
Step 4
Attach the button microphone and the power off button to the base. Optionally, you can attach to the base and LED. Then the bug will show whether it is on or off. Assemble all parts together on a plastic base. Place the bug in the selected body.
Step 5
Tune the bug using the FM radio with continuously variable frequency control. The disadvantage of this bug is the ability to eavesdrop only from the receiver. The previous model was tapped from a mobile phone, which seems to be more convenient and maneuverable.
