Dolby Audio : Enjoy dramatic, high-quality surround sound from 5.1 separate audio channels with Dolby Digital 5.1ch Surround Sound : 5.1 channels of real surround sound. Rear speakers and an external subwoofer work with a 3-ch soundbar to deliver dynamic, immersive, cinematic sound. Power Output : 400W power output puts you right at the heart of action. HDMI CEC : Yes Bluetooth Connectivity : Easily play your favourite content via bluetooth connectivity USB Playback :Use the USB port to plug and play music from a memory stick with ease Sound Mode :A button for every sound—choose the mode that right for whatever you are watching or listening to, including Auto, Standard, Cinema and Music. You can also select Night and Voice modes