TCL Q Q75H, 5.1.2 channels, 620 W, DTS Virtual:X, DTS:X, Dolby Atmos, Game, Movie, Music, Sport, Standard, Voice, Wireless, 6.5" TCL Q Q75H. Audio output channels: 5.1.2 channels, RMS rated power: 620 W, Audio decoders: DTS Virtual:X, DTS:X, Dolby Atmos. Subwoofer connectivity: Wireless, Woofer diameter (subwoofer): 6.5", Subwoofer location: Separate. High Dynamic Range (HDR) technology: Dolby Vision, Audio formats supported: FLAC, MP3, WAV, WMA. Connectivity technology: Wired & Wireless, Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), HDMI version: 2.0/2.1. Width: 41.5" (1054.1 mm), Depth: 4.86" (123.4 mm), Height: 2.68" (68.1 mm)