CC520 Over the Head Ultra Noise Canceling Duo Headset

Specifications:

• Wearing style - Headband
• Color - black 
• Connector - Easy Disconnect 
• Frequency response (microphone)- 300 Hz - 3400 Hz 
• Frequency response (headphones) - 300 Hz - 3400 Hz 
• Microphone - Ultra Noise Cancelling
• Sound pressure level (SPL) - Max. 103 dB limited by ActiveGard™ 
• THD, total harmonic distortion - < 1% 
• Earpad size - Regular 1.7 inch