The HT-S7800 package includes a powerful A/V receiver loaded with features you need for memorable entertainment every night: high-current amps. Dolby Atmos, DTS:X, 4K/60 Hz/HDR video and FlareConnect audio transmission from the receiver to an optional speaker in another room (via firmware update). For music, there’s Chromecast built-in (via firmware update), AirPlay, and Wi-Fi to stream albums from smartphone and PC apps.The high-quality speaker system is a snap to set up, with AccuReflex phase-aligning object-based formats for super-clear multidimensional sound.