Meritline offers the MEElectronics HT-21 Portable Travel Headphones in Black for $18.99. Coupon code "MLCKY16VNL1" cuts the price to $13.99. With free shipping, that's a buck below last week's mention and the lowest total price we've seen. (It's a current low of $1.) These foldable, padded, and adjustable over-the-ear headphones feature 40mm drivers, 10Hz to 20kHz frequency response, tangle-resistant cable, and 3.5mm plug.