1. This is an anti-spy signal small camera detector. 2. Low-voltage prompts, built-in rechargeable battery. 3. Laser detection: Windows host can be seen through the eyes of all within sight of the camera facing the camera. 4. Operation: Turn it on, the eyes are close to the view window, the laser light will be flash. Press the button on the side, the laser light will scan the front, if it find the lens, the camera, lens will be reflection, then you will find it.