Drop + HiFiMan HE-R7DX Over-Ear Closed-Back Headphones Description: Condition: New - Opened BoxFeatures:Drop + HIFIMANHeadphone type: Closed-backEar coupling: Over-earDrivers: 50 mm dynamic drivers with HIFIMAN’s Topology DiaphragmSensitivity: 101 dBImpedance: 16 ohmsFrequency response: 20 Hz – 20 kHzSpring steel and hand-stitched protein leather headbandCustom Focus-A hybrid earpadsAdjustable slidersSteel gimbals with black oxide finishBlack printingLaser-etched serializationCable: 60in. (1.5 m), detachablePlug: ¼ in (3.5 mm)Weight: 11.9 oz (