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Window/wall Stethoscoop transmitter Pro A2 This device can record the slightest sounds by a very high sensitive contactmicrophone. This microphone is connected to a transmitter with a extreme high dynamic range.The conversations can be listen throught a scanner/receiver with the possibility to a external recorder.  The sensitivity is adjustable so that sounds for example traffic does not dominate. Depending on the material the walls can be as thick as 50 cm, for walls with isolation material there is a other possibility to connect a Needle microphone for higher quality. Power Supply: 9V battery for 24 hours / 9V Lithium 72 hours Range: max 700 meters in open field!
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