Description: 【Multifunctional Discover】: Vibration alarm, positioning detection, long distance detection, anti lost detection, vibration alarm, sound and light alarm, LED fill light 【Smart Chip】: Camera discover, high sensitivity chip, 1MHZ-6.5GHz large receiving frequency range, all locators within this range can be detected, and the location of the wireless listening device can be accurately found 【3 Speed Sensitivity Adjustment】: Signal discover has 3 gears to adjust; the detection range can be adjusted by the power button to expand or reduce the detection range. If you want to find the location of the , please lower the sensitivity step by step to reduce the detection range 【Long Battery Life】: Listening device discover has a built in 450mAh large capacity battery, which can work continuously for 8 hours and has a standby life of 30 days without power failure; the use time is about 8H, and the standby time is about 30 days 【Portable】: Sweeper discover, the thickness is only 1.4cm, as light as 49g, and it is not a burden to carry with you. It is a must have artifact for business trips and hotels Specification: Battery Capacity: 450mAh Battery Model: 582728 Rated Voltage: 5V1A Charging time: 2-3H Continuous working hours: 8h   Material: PC Plastic Product Size: 8.8cmx5.5cmx1.4cm/3.46inchx2.17inchx0.55inch Package Includes: 1 Discover 1 USB Charging Cable 1 Manual Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.