KOSS 185000 Sparkplug VCw Earbuds

KOSS 185000 Sparkplug VCw Earbuds
Dynamic element positioned just outside the ear; Soft foam cushion expands for a custom fit to improve isolation and enhance deep bass and treble clarity; Fit enhances isolation to plug out ambient sounds that interfere with listening experience ; Frequency response: 10 Hz to 20 kHz ; Impedance: 16 ohms; Sensitivity: 112 dB/mW; 4 ft. white cord; Limited lifetime warranty; White;