AltaTac via eBay offers the Every Day Carry In-Ear Headphones 4-Pack in Black/Silver for $5 with free shipping. That's $1.25 per pair and $5 under the lowest total price we could find for for this quantity of similar in-ear headphones elsewhere. They feature a frequency response of 50Hz to 20kHz, 3.5mm jack, and more. Deal ends March 22 at 5:30 pm ET.