New Sonos Twin (Stereo) Play:3 Starter Bundle in stock. Sonos BU250 is back! - Sonos Bundles can save you hundreds of pounds. Grab a bargain Sonos deal like the new Sonos S5 bundles and Sonos BU250 including the new S5 twin bundle (get the BR100 bridge free) or the S5 and Sonos Bridge (at a reduced price).