[Privacy Protection]This product adopts passive wireless infrared scanning technology, which can accurately detect: eavesdropping, phone eavesdropping, meeting eavesdropping, GPS location tracker, car eavesdropping, wireless pinhole camera, wired camera, electric radiation source, etc. It can effectively prevent eavesdropping and , and help protect personal privacy data and information confidentiality.[5 levels of sensitivity]Changing the potentiometer can change the sensitivity and effectively detect the area within 30. (Increased sensitivity, extended detection range, reduced sensitivity, shortened detection range, faster and more accurate identification of radio wave sources.)[Multiple detection modes] More detection modes: 1. RF wireless signal detection 2. magnetic field signal detection 3. LED signal display detection 4. Flashlight auxiliary lighting, RF detector can detect radio waves, 2G, 3G, 4G mobile signals , bug. Frequency detection range 1Mhz - 6.5Ghz.[Durable and Lightweight]Light weight and small size, suitable for , such as hotels, conference rooms, bathrooms, changing rooms, residences, offices, examination . Built-in rechargeable battery, the standby time can reach 30 after charging, no need to replace the battery. It is more convenient to use and carry.[Simple and easy to use] Although the product has many functions, the of use is very simple. You only need to switch between functions through the "mode key" and "sensitivity adjustment key", even novices can quickly master the use of the Material: Plasticcolour: blackPackage Contents:1 x Wireless GPS Tracker1 x USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.