Buy.com has an ETYMOTIC RESEARCH ER6 Noise Isolating Earphones for $79.99 with Free Shipping.
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- System Includes – ER-6 Isolator earphones with 5 foot cord with 3.5 mm stereo plug, 1 pair 2-flange eartips, 1 pair foam eartips, 2 replacement filters, Filter changing tool, Shirt clip, Zippered pouch n
- Frequency response – 20 Hz to 16,000Hz n
- 1 kHz sensitivity – 108 dB SPL for a 0.4 volt input toward a maximum of 120 n
- Designed to match the acoustic response of the open ear n
- 90 Day Warranty (1 year if the warranty card is returned within the first 90 days)