OSD Audio’s WSK-SUB 5.8 GHz Full Range Wireless Subwoofer/Speaker Transmitter and Receiver Kit allows you to add a powered subwoofer, two active loudspeakers or a 2-channel power amp and passive pair of surround speakers to a new or existing surround sound system without having to run cable from the receiver/amp to the speakers.If you crave the rumbling excitement a subwoofer brings to the home theater experience but don’t want to (or can’t) run cable, OSD Audio’s WSK-SUB kit is the perfect solution. Installation is simple. Connect the transmitter to your AV receiver and the kit’s receiver to your powered subwoofer. Plug the receiver into an AC outlet and use the 45-channel selection to dial in the best signal. When the transmitter and receiver are within 100 feet of each other (line of sight), the signal is transmitted via the high-speed and less crowded 5.8 GHz broadcast frequency.You’ll enjoy steady, clear, and reliable bass with indetectable latency. This subwoofer transmitter kit can also be used with two active loudspeakers or a 2-channel power amp and passive pair of surround speakers so you can expand your audio system without having to tack cable to floorboards or run it through the walls.