KOSS 191867 UR10 HeadphonesOffers maximum sound quality & comfort in a lightweight, portable designClosed leatherette earpads provide maximum isolation & comfortFeatures adjustable headband that provides a secure fit for active music listeningFreq resp: 60Hz-20kHz Imp: 32ohm Sensitivity: 94dB/mW4ft straight, single-entry cordLimited lifetime warrantyUR10 Headphones