Having the Sound Touch 300 Soundbar & the Wireless Bass Module gives you a great sounding system, however, if you are a movie lover, you need that extra sound, from behind, this is where the Wireless Surround 300 Speakers come into play, working up to 9 metres away from the Sound Touch 300 soundbar means they will work even in larger rooms. Enjoy the difference of having rear speakers for your Soundbar, feel sweeping sounds all around you & truly be part of the action on screen.