The HD3 Bluetooth Speaker System with S6 6" 210W Subwoofer Kit from B&H includes a pair of walnut grain Audioengine HD3 wireless Bluetooth speakers and a gray S6 6" 210W subwoofer. The combination gives you a 2.1 speaker setup with impressive low-end bass for your streaming music or connected components, such as a turntable. The compact S6 connects easily to the HD3 speakers via their RCA output, making setup straightforward and easy.