Meritline offers these Noise-Isolating In-Ear Headphones in Blue, model no. 322, for $1.99. With free shipping, that's the lowest total price we could find for a comparable item by $6, although we saw it in a different color for a buck less in September. They are compatible with all audio devices with a standard noise isolating 3.5mm headphones socket.

Expect this item to arrive in two to three weeks.