Walmart offers the V7 Noise Isolating Stereo Earbuds in Black for $2.79. Opt for in-store pickup to cut them to $2.44. That's tied with last week's mention and the lowest price we could find now by $5. They feature a frequency response of 20Hz to 20kHz and 3.5mm audio jack.

Update: The price has increased slightly to $2.59.