lucky 7M Mini Waterproof Snake Pipe Cam Endoscope USB Borescope Inspection Camera Tool Lens: f/2.8; View of angle: 62; Waterproof Level: IP*67 Built-in LED light (with Brightness Control) on camera head to illuminate the inspection area The camera is waterproof with 10mm diameter so that you can inspect area under water, gaps and holes Applications: ear, nose oral & throat treatment, HVAC inspection, machine equipment, aircraft inspection,ect.