Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: VIZIO E320VT 32-Inch LCD TV (Black)
Product description: VIZIOs 32 Inch Class Edge Lit Razor LED LCD HDTV features 720p Full HD resolution and Edge Lit Razor LED backlighting for brilliant color and contrast in a razor thin design. With an amazing Dynamic Contrast Ratio of 100,000 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 four HDMI devices to your HDTV. Also exceeds ENERGY STAR 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., September 2011 As impressive as it is thin, VIZIO's E320VT 32-inch class LED LCD HDTV (31.5-inches viewable) features full 1080p high-definition resolution, Razor LED backlighting for a great picture and slim design, SRS audio technologies for virtual surround sound and volume smoothing, and energy-efficient operation that exceeds ENERGY STAR 4.2 guidelines. On top of all that, you'll be able to enjoy your JPEG photos from connected USB devices., The E320VT features edge-lit Razor LED backlighting for brilliant clarity, vivid color and contrast, and an impressively slim form factor, for a great-looking HDTV that will suit any room., Enjoy your high-definition sources in Full HD 1080p resolution, with a 100,000:1 Dynamic Contrast Ratio, for a clear, detailed picture with deeper blacks and brighter whites throughout your programming., No matter your lighting arrangement, you'll always have the best picture possible thanks to built-in ambient light sensing technology. The E320VT automatically adjusts backlight levels based on its surroundings to optimize levels. The result is a balanced picture that will never appear washed out or too bright., This HDTV also delivers advanced audio, thanks to SRS technologies. SRS TruVolume limits volume inconsistencies between programming, saving you from those incredibly loud commercials or smoothing out that action film so you don't wake the neighbors. SRS TruSurroundHD delivers an immersive surround sound experience marked by clearer dialogue, and more precise bass and high frequency signals., Three HDMI ports accommodate your home theater setup, Blu-ray Player, and HD cable or satellite TV, to deliver Full HD and 3D entertainment from multiple sources., Enjoy viewing your JPG/JPEG photos on the big screen with the E320VT's USB port. Here's your chance for a fullscreen slideshow of that family vacation, complete with transition effects like dissolves and wipes., This HDTV takes it easy on the energy consumption, exceeding ENERGY STAR 4.2 Guidelines, so your energy bill and the planet are both better off., VIZIO offers a one-year limited warranty on parts and labor for this HDTV, for some added peace of mind., Vizio E320VT 32-Inch 1080p LED LCD HDTV, Remote Control With Batteries, Documentation
Product feature: Exceeds ENERGY STAR 4.2 guidelines, Ambient Light Sensing Technology, 100,000 to 1 Dynamic Contrast Ratio, 1080p Full HD resolution, Edge Lit Razor LED backlight
Product brand: VIZIO
Target attributes: Depth
Answer: attribute: depth
value: None
source: None