1、[Hidden Camera Detection] The use of accurate signal detection plus optical scanning mode, comprehensive detection of hidden wireless cameras, hotel WiFi cameras, etc. Professional design for all types of camouflaged pinhole cameras. 2、[Multiple Detection Modes] Wireless signal detector with three detection modes, camera detection mode, a key anti theft mode and magnetic field detection mode. Can detect radio waves, 2G, 3G, 4G mobile signals, easy to use. 3、[High Sensitivity] This wireless signal smart detector widens the detection frequency and significantly improves the detection sensitivity, no matter how strong the signal source emits, you can easily find it by adjusting the sensitivity. 4、[Applicable People] For people who often use bank cards, travel, easy to be secretly photographed, and go to public entertainment places and shopping malls. As well as professionals who are in contact with the custody of business secrets, anti snooping and eavesdropping. 5、[Compact And Portable] Compact RF signal scanner with lanyard, easy to carry around. Can be used to detect hidden cameras, bugs, tracking devices, etc, fully guard your privacy. Perfect for home, office, travel, etc. Item Type: Wireless Signal Detector Material: Plastics, Electronics Detection Frequency: 1MHZ-8000MHZ Detection Dynamic Range: Greater Than Or Equal to 73DB Detection Sensitivity: Less Than Or Equal to 0.3mv Detection Range: 2.4G: 10㎡ 1.2G: 15㎡ Cell Phone Frequency Band: 2G, 3G, 4G Signal (15㎡) Magnetic Field Detection: Highly Sensitive Magnetic Field Induction, Detection Distance Within 10cm/3.9in Infrared Detection Distance: Approx. 10cm-15m / 3.9in-49.2ft Continuous Working Time: 15-20 Hours Battery Type: Built in 300mAh Polymer Lithium Battery (Included) 1 x Wireless Signal Detector 1 x Charging Cable 1 x Lanyard 1 x Instruction Manual