Meritline offers the Sony Stereo Headphones, model no. MDRMA100, for $29.99. Coupon code "MLCA22JN" cuts them to $19.99. (DiscountsJungle via Amazon charges pennies less for Prime members.) With free shipping, that's $2 under our mention from last summer and the lowest total price we could find by a buck. They feature a frequency response of 12Hz to 22kHz, 40mm drivers, folding headband, and more. Coupon expires after 100 uses.