RF / Lens Detector, Digital Signals of GSM / WIFI / Bluetooth / FM / VHF / UHF /Wireless Audio Video Transmission Multi function detectable pin hole camera and other spy wireless products. Detectable RF frequency from 1MHZ to 6.5GHZ for all RF frequency include GSM, WIFI, Bluetooth, FM, VHF, UHF, 900/1200/2400 wireless audio and video transmission frequency. Built in super bright red LED, can find out all hidden camera, pin hole, button, mobile camera etc. Dual mode RF detectable, buzzer mode and vibrate mode can also used earphone to detect RF signal, without any sound from unit. 4 signal strength LED status indicator from low to high.