I need some advice on a small stand alone

65olds88

I came across a small speaker setup with two speakers and a stand alone subwoofer/amp tower setup that appears to be for a computer. The tower has 3 plugins that are for the 2 external speakers and the power source input. Nothing for a feed. It seems as if this design might be for a wireless setup...does that make sense?? can the wireless be bypassed or can I find the piece that I'm missing? Any advice would be much apprieciated.