MISSING 1/4 INCH ADAPTER. Optimal sound isolation: closed-back headphones, featuring a circumaural design. The earpieces encircle your ears, Comfort: circumaural earpieces rest against your head without pressing down on your ears. Soft padding on the earpieces and underneath the headband. 60-ohm impedance Designed for DJs, with a cable on one side only: spiral cable for adjustable length — from 3.3 feet , 1 meter to more than 6.6 feet / 2 meters, Take them with you wherever you go: fold/turn the earpieces for easy transportation, Support for two headphones output formats: 1/8”/3.5 mm stereo jack + 1/4”/6.35 mm stereo jack adapter