... , silent, FengMing, earphone detecting Small Hidden Spy Camera Detector and Scanner,RF Bug Detector Features:* Vibration detecting, silent detecting, FengMing detecting ... Specification: Frequency:1MHz ~6.0GHz Alert mode 1:4 indicator lights and DiDi voice Alert mode 2:Vibration + 4 indicator lights Alert ... 42 mm (wrapping box) Small Hidden Spy Camera Detector and Scanner,RF Bug Detector