Newegg offers the Sennheiser HD 280 PRO Over-the-Ear Headphones for $79.95. Apply coupon code "VISACHECKOUT" and pay with Visa Checkout to drop it to $71.95. With free shipping, that's $8 under our mention two weeks ago and the lowest total price we've seen. (It's also $8 under the best price we could find for a used one; this one's new.) They feature a frequency response of 8Hz to 25kHz, 64 ohms impedance, and up to 32dB of ambient noise attenuation.