a terrible disappointment . jvc product have perform well for I in the past . my familiarity with the brand , and the reasonable price , prompt my purchase of these headphone . they awful performance be a surprise and a shock to I . when I stand or sit within 2 to 3 foot of the transmitter , the headphone sound great . from 4 to 6 foot , there be a annoying hiss . from 6 to 12 foot I could still hear the music but the noise be awful -- totally unacceptable . any greater distance than that and the noise be so loud it completely drown out the music . maybe the headphone I receive be defective , but they be absolutely useless to I . I return they to Amazon immediately . Amazon handle the return and refund to my credit card promptly . great company to do business with . but in this case , the product be substandard .