Tekimbe Multi Wireless Camera Lens Detector Radio Wave Signal Detect HiddenCamera Full-range WiFi RF GSM Device Finder Signal strength indicator with means to quickly find the signal at source. Adjustable sensitivity adjustment potentiometer (widening the scope to improve the sensitivity or lower sensitivity to detect reduced detection range) quickly identify the radio sources. Detection mode : 1-laser detection 2-vibration (silent) detection 3-beep detection 4-led display detection 5-headset .Low Cvoltage prompts, built-in rechargeable battery. laser detection : windows can be seen through the eyes of all host within sight of the camera opposite the lens .wireless sweep: frequency detection range(1mhz-6.5ghz) The sensitivity adjustment potentiometer can be adjusted (increased sensitivity to widen the detection range or lower sensitivity to shorten the detection range) radio power at faster to find