GlideScope Video Laryngoscope Reusable Blades (GVL 3, 4, 5 and AVL 2, 3, 4, 5). || GVL: The GlideScope Video Laryngoscope is a video laryngoscope that incorporates a high-resolution color camera, an LED light source, a rechargeable lithium battery, and video output to a remote monitor. It consists of a video laryngoscope and a portable video monitor. || AVL: The GlideScope AVL Video Monitor system has the same intended use as the GVL System. The difference between systems is that the AVL has a digital platform and the GVL an analog platform.