These are our top of the range GSM units.They have superb mics that are sensitive to even a whisper.The GSM Infinity extension lead can be supplied in a standard European type or a USA compatible type This superb disguised listening device. can be used to replace any lead in the premises often used behind a PC workstation etc. Simply dial the SIM card number inside the device and at any time, wherever you are in the world it will automatically and silently connect transmitting any conversations and sounds over the GSM network from up to 30 feet away from the device. Sound is filtered for perfect audio clarity.To the naked eye this looks nothing more than a normal lead but it secretly allows you to monitor everything in that room without sound distortion..
Thses units are fully functional .
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