Amazon is offering the Panasonic RP-HC55-S Noise-Cancelling Earbud Headphones for just $31 with free shipping. That is 70% off the retail price of $100 and the lowest price Amazon has ever extended for these earbuds. The noise-canceling feature is able to reduce outside distractions by up to 88%. Perfect for travel or getting some quiet time in your home office. 374 unique Amazon reviewers rate these buds 3.5 stars, making this a hot price and a smart buy.