[WIFI Connection] Download the app we developed, then turn on your device's WIF connection and use this endoscope, you don't need to fix it on an external device to see the image, it only supports for IOS 9.0+ and Android 4.4+ [IP67 Waterproof] The snake camera with light comes with a waterproof function, combined with its semi-rigid cable, it can effectively detect objects in the water, the battery is 850mah, and it can be used for 2.5 hours [Flexible Light Adjustment] There are 8 LED lights on the borescope inspection camera, and the adjustable light design of the roller can inspect items in ranges, which can effectively avoid the problems of reflection and weak light [Multiple Application Scenarios] You can use this inspection camera with light to find or inspect items in any small space, we provide 3 accessories hook for different application scenarios [HD Resolution Camera] The wireless endoscopic camera has a resolution of 2k, the best length of the main camera of the endoscope is 20-100mm, the side mirror is 20-50mm, and of view is 78x2, It enables you to observe objects more clearly tip: with battery size: Cable 5m Material: plastic colour: black Package Contents: 1 x Endoscope 3 x Hooks 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.