This Earphone

Buy.com has the Etymotic Research ER6i Isolator Earphones for $75 with free shipping. Highest noise isolation (15 to 35dB), Includes 5 ft. cord with 3.5 mm stereo plug.

Product description from Buy.com:

6i Isolator Earphones are designed specifically for use with the Apple iPod and other small portable players, providing greater sound output and enhanced bass.

In-the-ear secure fit for optimal performance

Highly accurate music reproduction with greater sound outp!
ut and enhanced bass

Exceptional noise isolation

Manufacturer: EtymoticMfg Part#: ER6I-BLK-BBuy.com Sales Rank: 331

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