Homemade Wireless Listening Devices

Written by shannon johnson
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Homemade Wireless Listening Devices
Nature's original listening device. (ear image by Connfetti from Fotolia.com)

Wireless listening devices can be manufactured from simple household products such as batteries and wires. These items make them easy and inexpensive to manufacture. Due to this reason, many students use these as spy devices. Another interesting fact is that the size of these devices is very small and lightweight.

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