The Frame Smart 4k Uhd TV 

HD Television High-definition digital Television also supports more audio channels and sound technology, which can provide a more realistic sound experience. At the same time, high-definition digital TV also supports a variety of signal input interfaces, such as HDMI, USB, etc., to facilitate users to connect external devices for audio and video playback. HDTV also has a wider choice of channels. The traditional analog TV system is limited by spectrum resources and can only provide a limited choice of channels, while high-definition digital TV can provide more channel choices through digital signal transmission to meet the diversified viewing needs of users.