Detector supports local and remote listening functions. You can use it to cooperate with UAV & robot to realize remote control and distortion free listening function. It is convenient for the investigation of remote operation on explosive initiation device in the scene of security inspection and explosive disposal. At the same time, the detector can be used as in TSCM field in order to detect hidden electronic eavesdropping devices. It has the features of high sensitivity, long detection distance, strong penetrability, easy to carry and operate.