Amazon offers Prime members the
AmazonBasics In-Ear Headphones with Universal Mic in Black for
$3.20 with
free shipping. That beats our May mention (which saw about the same price but required an order of $25 or more to purchase) and is the lowest price we could find at $5 off list. They feature in-line controls, cord clip for attaching to clothes, and two sets of extra ear-buds.