OneOdio via Amazon offers its OneOdio Over-Ear DJ Stereo Monitor Headphones for $29.99. Coupon code "ESEULONF" cuts that to $17.99. With free shipping, that's $2 under our mention from last December and the lowest price we could find today by around $17. These closed-back headphones are collapsible and feature a 10-foot cord and 20Hz to 20KHz frequency response. Deal ends March 28.