The Klipsch Wa-2 is a universal wireless subwoofer kit that converts any wired subwoofer into a wireless one in minutes. The transmitter plugs into your Av receiver's subwoofer output and the receiver plugs into your sub's Lfe input - no soldering and no software to install. The reliable 2.4GHz wireless link frees you from running long cables, so you can place the subwoofer wherever it sounds best in your room.