This Q Class TCL soundbar with 3.1 channels fills your room with sound, with 350 watts of power that immerses you in the sound, built-in tweeters, a center speaker built-in to enjoy clear dialog, wireless subwoofer that features a larger 6.5” bass speaker, Bluetooth connectivity, Dolby Audio and DTS Virtual:X, and auto room calibration. Soundbar measures 35.4” x 2.7” x 3.9”; subwoofer measures 9.8” x 14.4” x 8.8”.