1.Ideal for checking car, boat and airplane engines, blocked drains, mechanical appliances, etc. 2.The cable can bend and hold its shape to access a wide variety of confined places like kitchen plumbing, air conditioning, etc. 3.Equipped with 4.3 inch 1080P high definition display screen. 4.Built-in adjustable LED lights, it will help you improve visibility in dark or low light areas. 5.IP67 waterproof function, you can use it underwater or humid environment.