Ending today, Staples offers the Sony Stereo Headphones in Black, model no. MDR-ZX100/BLK, for $9.99. Opt for free in-store pickup to avoid the $9.95 shipping fee. That's tied with our expired mention from three days ago, which had free shipping, as the lowest total price we've seen. (It's a current price low by $3.) Sales tax is added where applicable. They feature 30mm drivers, a frequency response of 12Hz to 22kHz, and more.