Dahua 55-inch 4K UHD Smart Hotel TV DHI-LTV55-SA400 High resolution of 3840x2160 Abundant interfaces including RJ45, HDMI, audio out, USB, AV-in and turner Built-in android system and supports PAL, NTSC, SECAM ATV system Supports picture, audio, video and multimedia playing Supports multiple languages, picture modes and sound modes High cost performance and low power consumption.