Skullcandy SC-PRODJ4 SK Pro DJ Headphone, Red (Discontinued by Manufacturer) frequency range; 20Hz - 20Khz 50mm power drivers, 50mm speakers 90 degree swivel earcups for studio monitoring, soft leather-touch earpads and headwrap 3.5mm stereo plug & 6.3mm screw-on stereo adapter fold-up portability Includes travel pouch