Designed specifically for the SoundTouch 300 sound bar system, if you love the sound but require a little bit more on the low end, perfect for great cinema like performance, this is a great addition.A cleverly design housing enables a generous sized port which has also been designed using QuietPort technology, which virtually eliminates distortion. The subwoofer connects wirelessly to the SoundTouch 300 soundbar and is the best performance you can get from a subwoofer of this size, let it immer