HDMI connectivity with 4K pass-through brings your music, movies and TV shows to life;Premium glass and metal grille make the sound bar look as good as it sounds.;Bluetooth with NFC pairing and Wi-Fi technology let you stream music wirelessly, whichever way you prefer. Listen to music services like Prime music, Spotify and Pandora and your personal stored music;Add optional acoustic mass 300 wireless bass module and virtually invisible 300 wireless surround speakers anytime for deeper bass and full-on surround sound;Adapted Audio room calibration fine-tunes the system's sound to your room, so your sound always fits your space