Groupon offers the factroy-refurbished Monster Inspiration Active Noise-Canceling Over-Ear Headphones in Silver or White for $69.99. Coupon code "VISA5" cuts it to $66.49. With free shipping, that's $18 below our mention of new headphones from last spring and the lowest total price we've seen. (They're currently $24 below the best price for new ones.) These headphones feature active noise canceling, ear cushions, and a ControlTalk cable for controlling music and phone calls. Deal ends August 21. A 1-year Monster warranty applies.