Amazon already sells two 4K streaming devices — the Fire TV 4K ($69.99) and Fire TV Cube 4K ($119.99) — but today the Seattle-based tech company has revealed a gadget that brings 4K to a more affordable form factor: the Fire TV Stick 4K. The device, available to preorder for $49.99, comes with a redesigned Alexa Voice Remote featuring volume buttons and supports HDR standards HDR10, HDR10+, and Dolby Vision, as well as Dolby Atmos for audio. 

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