VMInnovations offers the Sennheiser HD 429 East Version Over-Ear Headphones for $53.99. Coupon code "5Y65AKM" cuts it to $34.99. With free shipping, that's tied with its Black Friday deal for the lowest total price we could find. (It's a current price low by $18.) These headphones feature an 18Hz to 20kHz frequency response and tangle-free cord.