All4Cellular offers these Apple Earphones with Remote and Mic, model no. MB770G/A, for $5.95 plus $2 for shipping. That's the lowest total price we could find in any color by $3, outside of the price below, although we saw them for $3 less in July. These earphones feature a 3.5mm connector, in-line microphone, and integrated remote.

A close price: Yellow Deals via Amazon has them for $8.30 with free shipping.

Update: Even better, All4Cellular has them for $4.95 plus $2 for shipping.