WiFi connection easy to use: The endoscope supports Android IOS and tablet. Very suitable for users who need to perform inspection work. Download a compatible application and install it on your device. You do not need additional adapters or cables. Just connect the endoscope camera to the smartphone via WLAN. Then launch the app to start checking High-definition endoscope with high color reproduction: The advanced sensor provides clear images high contrast and high-precision details. Through the high-resolution 1920x1080 pixel image every surface structure inspected with our inspection camera is clear high-contrast and true to the color on the monitor. It can even identify small defects IP67 waterproof and 6 LED lights: IP67 waterproof camera can check the underwater area (you don't have to worry about damage). It is very suitable for checking underwater pipelines water tanks and other places. And with 6 LED lights you can take pictures and check even in dark environments. It is very suitable for inspection and maintenance of cars machinery pipes household appliances wall structures sewers pipes etc 5cm-500cm observation. : Longer focal length no longer just shooting at close range. By extending the focal length from 5cm to 500cm this endoscope will become longer and larger. Even if you have a difference between the inspection camera and the detected target the inspection process will become easier because you don't have to worry about not having the right position to capture a clearer image Small camera: Unlike other borescopes equipped with 8.5mm lens on the market the diameter of the borescope camera lens is only 3.9mm. It is the perfect choice for anyone who wants to perform inspection work anytime anywhere