Upgrade your 4K streaming experience with Fire TV Stick 4K - now powered by a quad-core 1.7 GHz processor for faster app starts and more fluid navigation. From playoffs to premieres, experience it all like you're there with support for cinematic 4K Ultra HD. Experience vivid color and brightness with support for Dolby Vision and HDR10+, immersive sound with Dolby Atmos, and smooth streaming with Wi-Fi 6. Get to your favorite apps with preset buttons, and control TV power and volume with the Alexa Voice Remote.