Наушники KOSS QZ 2000

Frequency Response: 145-20,000 Hz
Revolutionary Active Noise Reduction (ANR) stereophone system reduces harmful and annoying low frequency sounds in noisy environments
Active Noise Reduction >15dB SPL from 40-200 Hz
Average of 10dB SPL from 30-1000 Hz
Includes compact control case and collapsible stereophone for convenient travel and portability
Adjustable headband design for maximum comfort
Straight, dual entry 4 foot cord
Operates on (2) "AA" batteries (included)
Includes input jack for audio play-through
Includes 2-prong adapter for in-flight use

Frequency Response 15-20,000 Hz
Cord Straight, Dual Entry, 4ft
Plug custom plug
Impedance 5k ohms
Weight 2.3 oz.
Sensitivity 101 dB SPL/1mW
Distortion <0.7%
Ear cushions open