Multi-purpose: This radio frequency finder can detect 1M to 8G Hz wireless hidden s, wifi s, spy s, Audio Bugs, surveillance devices, magnetic field, 2G,3G,4G mobile ph SIM cards, and GPS trackers for cars.^ Efficient: This detector combines an RF detector and an infrared detector to make finding hidden s and bugging devices a breeze. No matter hidden s are wireless or hardwired, even if they have been turned off.^ Ultra-sensitive: The anti spy detector has 12 levels of sensitivity. It can sweep and detects a room in minutes. It also prevents being monitored, intercepted, and tracked.^ Privacy Safety: It is easy to use in dressing rooms, tanning beds, bathrooms, locker rooms, hotels, AirBnBs, or conference meeting rooms. Hidden device detector alarms with vibration and LED indicator, no annoying noise.^ Lightweight Design: This bug sweeper detector is portable like a pen(only 1 oz). The detector can be used for 5 hours on a full charge.