The Samsung HW-Q930B is a 9.1.4 channel Dolby Atmos soundbar system delivering 540W of total output. It includes the main bar, a wireless subwoofer, and wireless rear speakers. Key features include wireless Dolby Atmos, DTS:X, SpaceFit Sound room calibration, and Q-Symphony Wired connections: HDMI Input: 1 port (supports 4K video pass-through and HDR10+)HDMI Output: 1 port (equipped with eARC / HDMI ARC for lossless audio return)Optical Input: 1 port (Digital Audio In / Toslink) Wireless connections: Wi-Fi: Dual-band support for high-quality audio streaming and firmware updatesBluetooth: SBC codec support for mobile streaming and wireless TV connectionWireless Atmos: Supports Wireless Dolby Atmos when paired with compatible 2022+ Samsung TVs Smart streaming protocols: Apple AirPlay 2: Stream audio directly from iPhone, iPad, or MacSpotify Connect: Control playback directly from the Spotify appChromecast Built-in: Cast audio from supported Android and iOS applicationsSmartThings App: Full setup, EQ tuning, and SpaceFit Sound calibration control via mobile device