LyxPro HAS-30 meets the demand for the studio that is dependent on a good pair of headphones. These headphone are closed back and have an excellent sound isolation which eliminates the outside noise as well as sound leakage. When it comes to recording vocals or live instruments then sound isolation is crucial because it prevents the sound coming out of the headphones from leaking into the microphone and being picked up on the track. Sound quality on the HAS-30 is marvelous, with its 45mm drivers, 100+-3dB sensitivity and a 15Hz-26KHz frequency response range, it has a rich clear sound and has a live touch to it, the ear cups are large and goes around the ear making this more of a specious feel which makes it more comfortable and a better listening experience. Included in the package are a nice hard case with 2 cables, a straight and a coiled cable, the straight cable is 9.5 ft. long and the coiled goes from 4 ft. up to 10 ft.