VM Innovations offers the VM Audio Elux On-Ear Folding Headphones in Piano Black/Pink, model no. EXHB100, for $17.95. Coupon code "WEVALUEYOU" cuts the price to $17.05. With free shipping, that's $3 under our December mention and $8 below the lowest total price we could find for a similar pair of headphones elsewhere. They feature a frequency response of 20Hz–20kHz, AirBraid cable insulation, coated carbon fiber body, and a case.
Of note, there are 10 additional colors for about $2 more.