The 50c features a wireless remote that puts special effects, source selection, mouse control, and volume at your fingertips. With its adjustable screen size, the 50c provides flexible viewing for any classroom or conference area. Its 400:1 contrast ratio delivers sharp text and high-definition images. Other features include a Kensington lock security mechanism and digital keystone correction for squaring up a picture while projecting at an angle. The PowerLite 50c comes with a durable carrying case, remote control, cables, and a two-year warranty.