30ch wireless flat soundbardistortion cancelling technologycentre channel speaker9 speakers with dedicated amplifiersbuilt in subwoofer4k pass throughwireless connection with tvsamsung multi room appdolby 51 dts 2ch hd audio processing5 surround modesbuilt in wi fibluetoothhdmi inputoptical inputcolour silverh78 x w1060 x d131 mm