VIZIO"s 37" Class Edge Lit Razor LED LCD HDTV features 1080p Full HD resolution and Edge Lit Razor LEDTM backlighting for brilliant color and contrast in a razor thin design. With an amazing Dynamic Contrast Ratio of 200,000 to 1, this sleek HDTV also delivers superior audio using SRS StudioSound HD audio for advanced virtual surround sound and volume control. It has three HDMI ports so you can connect up to three HDMI devices to your HDTV. Also exceeds Energy Start 4.2 guidelines to reduce energy consumption and has built-in ambient light sensing technology, which automatically adjusts backlight levels to the brightness of its surroundings.