Etymotic Research hf5 High-Fidelity Stereo Earphones - Ruby

Etymotic's 5th generation of high-fidelity in-ear earphones delivers a near-perfect music experience, even in high surrounding-noise conditions. hf5 earphones use Etymotic's acclaimed tuned acoustic-insert technology for the clearest, truest sound you can find. Research confirms that users choose lower (safer) levels when earphones seal the ear canal. Etymotic in-ear earphones are the highest-rated product on the market for passive noise-isolation.