UHF SPY BUG
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This is a remarkable super sensitive transmitter which can be hidden in a room or office and you can secretely listen and or record the conversations on the receiver else where. Small size makes it easy to hide and only measures 60x28x18mm and the battery will last amazing 150 hrs. This is available on 3 channels A, B, or C and is used by professional detective agencies. The same unit can also be supplied built inside a functioning calculator and many other everyday objects.