Wide Detection Frequency Range: This signal detector can be used to find vulnerabilities and locators using 2G, 3G, and 4G SIM cards. It detects high-speed downloads of GPS position data packets, 1.2G ~ 5.8G wireless cameras, magnetic GPS locators, and dormant bugs. High Sensitivity: The adjustable sensitivity control allows you to increase the detection range or decrease it to pinpoint the radio source faster. Indicator Mode: Features an LED light indicator and a super-bright red LED to locate hidden cameras, surveillance devices, access control systems, buttons, and mobile phone cameras. Turn on the wireless probe button, and the indicator lights up to show that the power is working normally. High-Performance & Long Standby: Equipped with a 10-level digital tube, buzzer mode, and vibration mode. You can also use headphones for silent radio frequency signal detection. Built-in 1000mA rechargeable polymer lithium battery provides 4-5 hours of working time and charges in approximately 2.5 hours. Wide Range of Applications: Suitable for detecting eavesdropping devices and radiation from base stations around residential buildings. It can detect wireless installations and locator bugs in cars or offices. Use it in homes, hotels, bathrooms, changing rooms, business negotiations, confidential meetings, large workshops, research rooms, entertainment venues, or as a monitor for school exams.