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Miniature FM Wireless Microphone
Having a wireless microphone at home can be real fun; the miniature FM wireless Microphone can be used as a spy gadget. It is able to broadcast audio picked from a room you leave that microphone in, to a nearby FM Radio and enables you to listen what is going on in the room. The presented wireless microphone is actually a miniature radio bug which has an effective range of about 150 meters. It operates from a 6LR61 - 9V battery or from any power supply unit of 5-12V. Transmitter's frequency is adjustable from a variable miniature coil. |
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