Koss Active Noise Reduction Plug System Stereophones QZ-77 @ YourCableHookup.com

Description
Reduces harmful and annoying low frequency sounds in noisy environments - ideal for in-flight use Unique earbud design directs sound into the ear canal for deep bass Specialty ear cushion material forms slowly in the ear canal to provide a custom fit and maximum isolation Frequency response: 10-20kHz Includes lanyard and airplane adapter UPC: 21299150764

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