The VIZIO Smart LED HDTV M552i-B2 features best in class picture quality powered by Full-Array LED backlighting with 32 Active LED Zones. Enjoy superior light uniformity, deeper black levels and brighter, more vivid details. Sports and fast action scenes are super clear with 240Hz Effective Refresh Rate with Clear Action 720. Connect faster with the 1080p 240Hz LED HDTV built-in WiFi. VIZIO Internet Apps Plus delivers hottest movies, TV shows, music and more from Netflix, Amazon Instant Video, iHeartRadio, HuluPlus, YouTube, Spotify and more. Included Smart Remote with backlit keyboard makes controlling these apps a breeze. Surf content on your smartphone or tablet and send contents directly to your VIZIO Smart LED HDTV M552i-B2 from your mobile device. Note: You must have a source of HD programming in order to take full advantage of the VIZIO Smart LED HDTV M552i-B2. Contact your local cable or satellite TV provider for details on how to upgrade.