Tukzer Anti-Spy RF Signal Bug Detection Ghost Detector / Wireless Hidden Camera Finder / Searching Detection Device for Privacy Protection Ghost Detector adopts wireless RF detection to check if there are any wireless devices with the frequency between 100-2600MHz ranging from 1cm to 10m. By using it, the possibility of being tapping or recording will be greatly cut down. Applicable Scenario: business negotiation, hotel, WC, place of entertainment or dressing room, etc. Can effectively prevent eavesdropping, videotaping, fraud, protect personal privacy data and information confidential. It is a nice device to protect your personal privacies.