1. Acoustic shock protection circuit passes voices , but blocks sudden high-volume sounds

2. High quality ear cushion provides extra comfort . Leather or foam cushion options .

3. Driver Unit : 2*30mm

Freq. res. : 20-20KHz

Impedance : 150ohm

Sensitivity 125dB

Max input power : 10mW

Cord Length : 1.8m coil cable