LG soundbar with Meridian and a wireless subwoofer. The top of the device has 2 upward-firing speakers for Dolby Atmos technology that broadcast sound upwards. Model number SN9YG. Most popular LG models with Meridian Model | Channels | Power | Notes - | | - | - SN9YG / SP9YA | 5.1.2 | 520W | Dolby Atmos, DTS:X, Hi‑Res Audio Connectivity: HDMI eARC, HDMI input, Optical input, Bluetooth, Wi-Fi Streaming: Chromecast, some with AirPlay 2 and Google Assistant AI Sound Pro: Automatically adjusts sound based on content type AI Room Calibration: Calibrates sound according to the room Subwoofer: Wireless and pairs automatically with the soundbar