This Earphone

Buy.com has the Etymotic Research ER6i Isolator Earphones for $73 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 output and enhanced bass

Exceptional noise isolation

FeaturesFrequency response: 50 Hz to 16 kHzTolerance: ?3 dB to 6 kHz, ?6 dB to 16 kHz re nominalTransducer type: Balanced armature1 kHz sensitivity: 108 dB @ 0.1VImpedance: 16 OhmsMaximum output: 120 dB SPLMaximum continuous input: 2.5 VrmsWeight: less than 1 oz.

Package Contains6i Isolator Earphones 5 ft. cord with 3.5 mm stereo plug Flanged and foam eartips 2 replacement filters Filter changing tool and filters Shirt clip Pouch

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