Enjoy HDR 4K UHD content and streaming in two rooms with this B&H Kit that includes two black Google Chromecast Ultra devices. They each plug into your TV or home theater receiver's HDMI port, enabling you to stream media from your mobile device or the web. They support video with 4K UHD (3840 x 2160) resolution for use with compatible displays and connect to your home network via dual-band Wi-Fi 5 (802.11ac) connectivity or the included Ethernet adapter. Set them up with the free Chromecast mobile app, then send your favorite online shows, movies, music, and more to your TV using your compatible smartphone, tablet, or laptop.