UNIVERSAL RF SIGNAL ANTI-SPY DETECTOR: GSM, GPS, 3G, 4G, CDMA, Wi-Fi devices, wireless videocams and radio microphones. Great for scanning your hotel room, office, home, meeting room and vehicle. Lets you filter out unnessary (known) positive signals. Don't leave home without it! | RECORD HIGH DYNAMIC RANGE - 70 dB. Detects bugs with very low signals and high power bugs alike. | DETECTS WIDER RANGE OF BUGS at 70dB sensitivity including those with very weak signals and those with especially high power. This gives you access to a much wider range of bugs than most other anti-spy devices. Detection range is up to 16 feet in all directions. When set to Security Mode, it warns you if a spy device appears anywhere within 164 feet. Light weight of 3.9 oz and compact dimensions 4.1 x 2.3 x 0.7 in. | DETECTS WIDER RANGE OF BUGS at 70dB. Detection range is up to 16 feet in all directions. When set to Security Mode, it warns you if a spy device appears anywhere within 164 feet. Light weight of 3.9 oz and compact dimensions 4.1 x 2.3 x 0.7 in. | 100% MONEY BACK GUARANTEE ensures this will quickly become your favorite no-risk purchase. Many people are getting several of these to have one at home, another in the car, and a third at work. This makes a fine birthday gift, holiday present or anniversary gift for anyone who values their privacy!