75” The One QLED 4K Ambilight TV Ambilight : 3-Sided Immersive, reactive lighting system 4K QLED : Vivid colors, ultra-sharp scenes, picture perfection P5 Engine Enhanced contrast, motion, and detail Sound : 2.1 Channel, Dolby Atmos, DTS:X, Vocal Boost. Gaming : 144Hz VRR, ultra-low lag. Smart OS Titan OS with voice control Gaming Control Bar : Access games instantly