The BIC America 4 Channel Wireless Transmitter Receiver Kit makes it easy to connect your powered subwoofer and powered speakers wirelessly. It offers a range of 80 ft. unobstructed and up to 60 ft. obstructed with no interference, delay or drop outs. Its super compact size and self-adhesive VELCRO strips enable multiple placement options. Put your subwoofer where it looks and sounds best without the hassle of a cable. Connect the Wireless Transmitter to your A/V receiver, PC, Mac, mobile device, TV or any product with a 3.5 mm or RCA connector and send a signal to any powered speakers in your home. With setup in just minutes, you can immediately enjoy CD-quality sound from your patio, second audio zone or anywhere.