FEATURES: 16.5 Feet/5 M wire cable, Camera head diameter with 8mm, built-in 6 adjustable led light for inspection in dark environment; IP 67 camera probe allows you observe in aquariums, swimming pools; High capacity of 800 mAh for continual use. SYNC CAMERA: Easy download & install endoscope APP in your iPhone, Samsung Smart Phones, Tablets or Windows to enjoy live viewing with HD resolution via WiFi connection.When you use it with IOS phone,it has four resolution choice:1600*1200/720P/VGA/QVGA. You can choose the suitable resolution on the basic of measured object. HIGH RESOLUTION: This WiFi endoscope features 2.0 Megapixels HD camera that provides HD 1280*720, 640*480, 320*240 resolution for you to enjoy a wonderful experience of recording a clear close range HD video and snapshot image. OPTIMAL INSPECTION ANGLE: Pls note that in order to get the best image quality, the best observation distance is about 1.57 - 2.36 Inch, if too far or too close, it may both affect the image quality. WIDE APPLICATION: This endoscope is widely use for Home inspection, Outdoor Exploration, Science Education, Plane Inspection, Motor Vehicle Detector/Repair/Maintenance..