Meet the Sonos BOOST: an awesome add-on for folks who don’t have a reliable wireless network to use with their Sonos music players. This device plugs into your home router and creates a dedicated wireless network for your Sonos system. It delivers 360-degree signals for better coverage and reduces interference from other wireless devices.
You can use your Boost to wirelessly connect your PLAYBAR to SUB and PLAY:1 rear speakers. It has 3 wireless antennas and a wall mountable design. All you need to do is connect a BOOST to your router and use the free Sonos app to set it up. The BOOST device supports up to 32 players. Sets you back under $100.