KOSS tc 5

Frequency Response: 60-20,000 Hz
Single-sided headset delivers hands-free communication from most cellular and RF cordless telephones
Clear Voice Technology (CVT) Microphone for maximum performance in noisy environments
Dynamic element for extended frequency response
Pivoting ear cup for flexible movement during extended wear
Foam ear cushion for open, hear-through sound
Adjustable headband for best fit
Straight, single entry 8 foot cord

Frequency Response 60-20,000 Hz
Cord Coiled, Single Entry, 8ft
Impedance 32 ohms
Weight 1.5 oz
Sensitivity 91 dB SPL/1mW
Distortion <1.0%
Ear cushions open