Here’s another ‘best of web price’ from Amazon on the Sony MDR-NC6 Noise Canceling Headphones. To be clear, they require 1 AAA battery to operate the noise canceling effect, but can be used as normal headphones. They’re $42.99 – $17 instant savings = $32.99 Shipped!
- Reduces exterior noise by more than 70 percent (10 dB at 300 Hz) so you can hear music against a quieter background
- Active noise reduction from 40 to 1,500 Hz using 1 AAA battery (not included); extended battery life approximately 30 hours
- Compact size and folding design allows easy storage in a backpack, briefcase, or purse
- Noise-canceling on/off switch; headphones work with or without power
- Includes soft carrying case and airplane adapter plug