Samsung HW-Q930D. Audio output channels: 9.1.4 channels, RMS rated power: 540 W, Audio decoders: DTS 11.1, DTS-HD Master Audio 5.1, DTS:X, Dolby Atmos, Dolby Digital Plus, Dolby TrueHD. Soundbar speaker RMS power: 240 W. Subwoofer connectivity: Wireless, Subwoofer RMS power: 160 W. Product colour: Black, High Dynamic Range (HDR) technology: High Dynamic Range 10+ (HDR10 Plus), Virtual assistant: Amazon Alexa. Connectivity technology: Wired & Wireless