Teaching Desk & AV Hub This compact A/V hub consolidates all your technology tools onto a single mobile classroom cart: laptop or LCD/CPU, keyboard and mouse, portable document camera, projection device and more. Un-tether from a desk or podium and move wherever needed to deliver a collaborative curriculum. TeachWell easily rolls through aisles, doors and cramped media areas, while its height-adjustable, sit-stand desk platform moves the keyboard, display and worksurface in one simple motion. Change from a sitting to a standing position as you work whenever you want.