The 855i is a USB connected, flexible Smartphone Two-Way Articulating Inspection Camera Borescope. It features a 8.5mm diameter by 1 meter long flexible probe, which is covered with polymer tube for durability and resistance to liquids. The camera is ringed by 6 bright LED lights to provide bright, shadow-free illumination. And with its 8.5mm two-way articulating tip, the 855i can access and clearly reveal any inspection area. A universal adapter allows the 855i to directly connect to a iPhone, iPad, or Android phone or tablet through a USB data cable. There's also a free downloadable App (Finder Borescope) available from Google Play Store, or the Apple App Store to maximize the use of the 855i. With it, you can preview, take pictures and videos with the click of a button. The flexible shaft of the 855i is sealed and water resistant to operate safely in less than ideal conditions. Use it to look into engine cylinders, inside airplane wings, behind instrumental panel, inside brake systems. It's a great diagnostic inspection camera for mechanics and technicians.