Noise Canceling Headset in zipper carry  case.  Frequency range:20-20KHz, Active cancellation: Up to 20-25dB.  cancellation between 100-500Hz. 5' straight cord with 3.5mm plug. Requires 1 - AAA battery, not included.

Noise Canceling Headset in zipper carry case. Frequency range:20-20KHz, Active cancellation: Up to 20-25dB. cancellation between 100-500Hz. 5' straight cord with 3.5mm plug. Requires 1 - AAA battery, not included.

NC-HBC$33.50