The Klipsch HD Control Center creates its own dedicated network. Reference Premiere HD wireless speakers don't rely on your home WiFi to eliminate dropouts and interference caused by limited bandwidth within your home. Klipsch® Certified Factory Refurbished audio products have been tested, inspected, and approved for sale by a Klipsch quality control professional. All Klipsch® Certified Factory Refurbished audio products pass the same stringent performance standards as our new products and have few or no defects or imperfections. All Klipsch® Certified Factory Refurbished products come backed with our standard limited warranty and free 90-day money-back guarantee .PZA More Features