Koss QZ-77 Active Noise Reduction Ear Plug System
- Reduces harmful and annoying low frequency sounds in noisy environments
- Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
- Dynamic stereo phone element for extended frequency response (10 - 20, 000Hz)
- Reduces harmful and annoying low frequency sounds in noisy environments
- Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
- Reduces harmful and annoying low frequency sounds in noisy environments
- Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
- Reduces harmful and annoying low frequency sounds in noisy environments
- Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
- Dynamic stereo phone element for extended frequency response (10 - 20, 000Hz)
- Reduces harmful and annoying low frequency sounds in noisy environments
- Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
- Reduces harmful and annoying low frequency sounds in noisy environments
- Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
