Ruze Shoes via Buy.com offers the Munitio Billets Call of Duty MW3 Special Edition 9mm Headphones in Black/Green, model no. 617885962745, for $22.49 with free shipping. That’s $3 under our mention from three weeks ago and the lowest total price we could find by $3. These earphones are made from lightweight aircraft-grade alluminium and feature six sets of noise-isolating hollow-point tips, 20Hz to 20kHz frequency response, two ear hooks, 120cm cable, and more.