Krisons 4.1 Home Theatre has various input sources like BLUETOOTH, USB ,FM Radio , AUX-IN and SD Card reader and is compatible with your Mobile Phone , Tablets ,PCs ,Television etc. .It comes with 1 Sub-Woofer and 4 Satellite Speakers .It has a wireless remote for ease of use . It has a High Output and crystal clear natural sound. It is a perfect home entertainment audio system with state of art technology and European Design .For those who prefer true value , attractive looks and superior performance this is the right choice . Just Plug-In and enjoy .