These Beats by Dr. Dre Solo 2 On-Ear Headphones drop from $199.99 to $119.99 at Groupon Goods. Plus, the shipping is free, making this the lowest price we could find for these headphones by $10 to $20 depending on the color. They have a folding design, tangle-free cord, in-line mic and music controls, and leather ear-cushions. Five colors are available, but stock is limited. Sales tax is charged in most states.