B&H Photo Video offers the Altec Lansing Muzx Core Ear Buds With Mic in White, model no. MZX206W, for $14.83 with $3.35 for shipping. Outside of the price below, that's the lowest total price we could find by $3. (We listed them for $5 less in July.) This headset features an in-line microphone, 10mm drivers, 6-piece silicone fit kit, and more.

A close price: Amazon has them for $18.32 with free shipping for Prime members.