The Pioneer HDJ-X5 are DJ headphones with 40mm dome drivers. The headphones have a wide frequency range of 5 to 30,000Hz. This makes the audio sound detailed. The coil cable gives you mobility without a long cable hanging on the ground. Retracted, the cable is 1.2 meters long, but stretched out, you'll have 1.8 meters to move around. With the 90-degree rotatable ear cups, you can easily listen with 1 ear while monitoring or playing music. After spinning some tunes, you can safely store the headphones in the included hard case, so it won't get damaged when you travel.