The YHT-3920UBL Residence Theater Device supports Bluetooth for wi-fi song playback, 4K Ultra HD video with HDCP 2.2 compatibility and a discrete 5.1-channel amplifier design. As Well As YPAO robotically calibrates your listening environment for most efficient sound efficiency. Integrated is a compact 5.1 channel speaker Gadget with a powerful Eight” 100 W powered subwoofer….