The Techni Mobili Sound Kube Ottoman includes a 10-watt speaker and large subwoofer. It has a built-in control panel with easy controls which will allow you to connect to any bluetooth device. It is made of TechniFlex Faux leather upholstery material with a solid wooden construction and soft padded seat cushion top. A bottom storage compartment can store all cables or any other accesssories. It connects via a wall DC adaptor which is included.