Just 2 days to save 35% and receive Free USPS Priority shipping!* Enter the code HHFKoss to receive the promotional discount. *Offer details To take advantage of this offer: 1. Visit: https://www.koss.com/ 2. Browse the headphones and select your favorite. 3. Add your item to your cart 4. Proceed to checkout and enter promo code, HHFKoss for savings. 5. Submit order. Previous purchases are not eligible for this offer. Offer is valid until 11:59 PM CST on December 18, 2012 in the United States and Canada. Free shipping offer only applies to orders being shipped to United States addresses using the USPS Priority shipping option, Canadian residents will receive just the 35% discount. Striva Pro is not eligible for this promotion. Limit 3 Porta Pro and 3 Porta Pro KTC per order. Shipment arrival date not guaranteed by Koss. Discount and Free Shipping are added at checkout when the following promotional code is entered at time of checkout: HHFKoss