COGEEK Mirco USB Endoscope 7mm Mini Waterproof Endoscope Inspection Camera For OTG Function Android Phones Windows PC (16.4 ft (5 m)) OTG Function: allow full compatibility with ALL OTG compatible Android devices and Windows PC. Waterproof Camera: featuring a 16.4 ft cable, use this inspection camera to access place inaccessible or not viewable by the naked eye. 6 LED Lights: luminance adjustable lights improve visibility in low-light environment and allow you to work better. High Resolution: clear close range video or snapshot image with a resolution up to 640 x 480. Install CameraFi (free apps on Google Play), plug the borescope and you are ready to go--it's that easy!