•【More Efficient With Advanced 2nd Cmos Chip】: The Endoscope Adopts The 2nd Cmos Chip, Which Supports The Highest Recording Frame Rate And Solves The Problem Of Picture Delay. You Can Quickly Switch Between The Front And Side Cameras While Working. It'S Widely Used In Fields Such As Plumbing, Hvac Duct Inspection, Chimney Inspection, Machinery Inspection, Automotive Repair, Electrical Diagnostics,Wall Structure Inspection.