The HT-RT3 is almost ready to go straight out of the box. Just plug it in, wire up your speakers via colour-coded connections and enjoy 5.1 channels of real surround sound. All your cables run into the subwoofer, so you can keep things neat and tidy.HDMI ARC (Audio Return Channel) lets you connect to your TV with a single cable, for easier control and fewer cables.Enjoy a stable connection for smartphones, tablets and USB sticks, so you can charge your device or play MP3 files.Enjoy high quality surround sound from Blu-ray and DVD players with the optical input.Immerse yourself deeper in every movie soundtrack with 5.1 channels of real surround sound. Wired rear speakers and an external subwoofer work with a 3ch sound bar to deliver deep, room-filling sound, while the S-Master digital amp minimises distortion. You can easily enjoy all your music and movies with USB video1 and audio playback.