Koss 192823 KPH14W SD FIR HDPHN BLK

• 12-mm drivers;• Frequency response: 100 Hz to 15 kHz;• Sensitivity: 104 dB SPL/1mW;• Fit Series side-firing headphones are designed specifically for active lifestyles and working out with ultra-lightweight design, non-isolating hear-through sound for ambient awareness, sweat resistance, and durable cord;• Fully adjustable, sweat-resistant comfort-fit headband;• 4-ft. (1.2-m) dual-entry straight cord;