Summary: While the Etymotic ER-4PT MicroPro earphones offer excellent audio quality, we found the custom molds difficult to insert. Still, if you don't want to spend more than $300, we prefer the sound from the ER-4 more than the Sonomax eers PCS-250. We recommend skipping the custom molds, though. With the plethora of tips that come with the earphones, you'll most likely find a set that fits just fine without having to spend an extra $100 for the molds.
Pros: Long sturdy cable, Comes with a large number of extra tips, Good fidelity for the price
Cons: Hard to fit snugly, Silicone irritated ears, Cost of fitting not included