Harman Kardon offers its factory-refurbished Harman Kardon CL Precision On-Ear Headphones in Black/Silver, model no. HARKAR-CL, for $139.99. Coupon code "CLDEAL" cuts it to $49. With free shipping, that's tied with our March mention as the lowest total price we've seen and $87 below the best price we could find for a new pair today. These folding headphones feature a 16Hz to 20kHz frequency response, leather earpads, detachable cable, three-button remote, and microphone. A 1-year Harman Kardon warranty applies. Deal expires May 24.