4K Ultra HD & HDR chromecast, phone to TV adapter supports resolution up to 4K(3840*2160) connect to smartphone, Mac laptop or iPad to a TV, projector, or monitor and everything you see on your mobile devices will be reflected on the larger screen, which is easier to watch. by 3 steps you can easily enjoy music, video, photo, desktop file and website on big screen. Plug it into the HDMI interface of the TV and use 5V / 1A power supply, then connect the device in Miracast, Airplay or DLNA mode with Instructions, to finally mirror the media on the big screen. portable chromecast is small enough to put in your pocket and enables important business conference, office routine meeting, multimedia campus education in school, home theater entertainment take place anywhere anytime which outputs from your smart phone, tablet or MacBook laptop.