Z537 Powerful Sound with Bluetooth allows you to stream audio wirelessly from any Bluetooth enabled computer, tablet or smartphone. Easily access Bluetooth pairing, power, volume and the headphone jack from the wired control pod. Adjust the bass level with the dedicated control knob on the back of the subwoofer. For a wired connection use the 3.5mm or RCA inputs. No need to disconnect or re-pair when switching between audio sources. This 2.1 speaker system delivers powerful yet balanced acoustics produced by full range drivers designed to move sound throughout the entire room.