To take advantage of this offer visit: http://www.koss.com, browse the headphones and select your favorite, add your item to your cart, proceed to checkout, enter promo code BOO20 and submit your order. Previous purchases are not eligible for this offer. Free shipping offer only applies to orders being shipped to United States addresses using the USPS Priority shipping option. Offer not valid on BTS1, BT540i, SP540, SP330, Pro4s, and Striva Products. Discount and Free Shipping is added at checkout when the following code is entered at time of checkout: BOO20. Valid through 10/31/2014 11:59 PM CST in the United States and Canada.
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