RioRand USB Waterproof Snake Inspection Camera Endoscope (7M Waterproof Endoscope) Powered by RioRand advanced technology Camera head outer diameter is 14.5mm ;USB 2.0 interface Waterproof Level: IP*67;Image Resolution: 640 x 480 pixels Lens: f/2.8;View of angle: 62 Frame Rate: 30 fps,USB Cable Length: 7M