【5.5mm DIAMETER SMALL CAMERA】The diameter of this USB endoscope camera head is only 5.5mm (0.2 inch), perfect for entering very small holes for inspection. 【STABLE CONNECTION】The USB endoscope has a more stable and convenient connection than wifi connection. Suitable for OTG Android 4.4+ devices, MAC & Win PC. 【6 ADJUSTABLE LED LIGHTS】6 adjustable LED lights on the camera tip which greatly help to get a smooth video and HD image in the dark or low light, even underwater. 【16.4 FT WATERPROOF SEMI-CABLE CABLE】Equipped with a flexible cable that can easily control the direction of the inspection camera, bend and maintain its shape to access tight spaces. Combined with the IP67 waterproof feature, it can be widely used to inspect pipelines, drains, wall crevices, holes, cable trays that have troubled you before. We not only provide high-quality products, but more importantly, we provide you with a long-term after-sales guarantee. When you purchase our products, you will receive comprehensive after-sales support, so you can shop with confidence and satisfaction.