Sonos will now operate across your existing Wi Fi network. If you have a great Wi Fi signal at home, simply set up a Sonos speaker wirelessly on your home Wi Fi network using the free Sonos controller app. This then allows you to enjoy your Sonos speakers in perfect sync, in every room. If your home Wi Fi network isnt quite reliable enough, Sonos offers a dedicated wireless network, eliminating interference and increasing range. You simply connect a Sonos Bridge to your router to create a completely separate wireless network. This then runs independently to your Wi Fi network, erradicating any interference from non-Sonos wireless devices. Please note, the dedicated Sonos Wireless Network is required to wirelessly connect PLAYBAR to SUB and rear speakers. The Sonos Playbar soundbar is a single plug-and-play unit that incorporates 9 integrated amplified speakers to deliver an epic home cinema sound in your own living room. Automatic adjustments to the levels deliver a sound experience exactly as it was intended to be heard, whether it be all action blockbusters or elegant period classics and will handle all the standard TV audio formats such as Dolby Digital 2. 0 & 5. 1 and PCM. Connection to your television is achieved simply by using the supplied optical cable and this will output any device that is already attached, including satellite boxes, blu-ray players or games consoles The Playbar also doubles as a wireless speaker for your smartphone, tablet or computer. Simply download the free Sonos Apps and open up a universe of music in every room - your iTunes library, music services like Spotify and Napster, and more than 100, 000 free Internet radio stations, podcasts and shows. Plus with Sonos connectivity, the PLAYBAR works with all amplified and non-amplified Sonos products. So expand your Sonos system throughout the entire house, and play your music wirelessly in other rooms, just add another Sonos player.