Warranty: 90 Combines exceptional dual-channel treatment capability with powerful imaging performance to realize the full potential of therapeutic endoscopy. With its high-quality HDTV image along with Narrow Band Imaging (NBI) and a Close Focus optical system, the GIF-2TH180 excels in terms of image quality. Its versatile dual-channel design offers powerful suction capability and can accommodate two endoscopic devices simultaneously. Channel Width: 2.8, 3.7 mm Working Length: 103 cm Field of View: 140° Direction of View: 0° Depth of Field: 2-100 mm Outer Diameter: 12.2 mm Outer Diameter Insertion Tube: 12.6 mm Max Angulation Up: 210° Max Angulation Down: 90° Max Angulation Right: 100° Max Angulation Left: 100° Return Policy90 days warranty Return in case of manufacturing defects Return for incopatibility assumed by the buyer