Feature:1. Physical Detection: This detector has a strong magnetic locator in it, making the detector error free and highly accurate.2. Accurate Detectation: This detector uses radio wave detection, faster search signal, stronger anti interference, unlock orientation distance detection more accurate.3. Small And Portable: This detector is compact and lightweight, which is ideal for carrying with you when you go out, and very convenient.4. Long Endurance: The battery life of this concealed device detector is long lasting and can support the detector to work continuously for 4 to5 hours.5. Simple to Operate: This detector is composed of the latest SMD components and integrated circuits, easy to install and use stable performance.Specification:Item Type: Anti Recording DetectorMaterial: ABS, MetalFrequency Range: 1MHz-8000MHzDetection Dynamic Range: 73DBDetection Sensitivity: 0.03mvDetective Range:2.4G: 10m (Standard 10mw)1.2G: 15m ( Standard 10mw)Cell Phone Band 2G, 3G, 4G Signal: 15mBattery: Polymer Lithium Battery x 1 (1000mAh) ( Shipped With Built In Battery )Working Time: 4-5 Hours ContinuousOperating Current: 60-110maSignal Detection Range: 10mOptical Lens: Special Dedicated Filter.Package List:1 x Anti Recording Detector1 x Antenna1 x Magnetic Field Probe1 x Charging Cable1 x Instruction ManualNote:All antennas must be installed in pairs before using the device, otherwise it will damage the device. Antenna number can refer to the manual.