China-Town-Us via eBay offers these Stereo Earbuds with Microphone for Samsung Galaxy S4 in Black for $1.91 with free shipping. (EB-Source via eBay offers them in White for a few cents more.) That's tied with our mention from last week and, outside of other eBay sellers, it's the lowest total price we could find by a buck. They feature a mute button and volume control.
Note that these will ship from China with estimated delivery between March 16 and April 17.