With a resolution four times greater than Full HD, Infinity 4K Ultra HD Televisions have more than 8.2 million pixels. Even when viewed up close, the HD TV's astonishing clarity and exquisite visual details will wow you. excellent surround sound Add immersive sound to your 4K watching to make it even better. The only equipment needed for Ultra Surround is the TV's built-in speakers, which provide a realistic audio experience from seven virtual channels.