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The Etymotic Research ER-4S stereo earphones feature an ultra-lightweight design, up to 42dB of external noise attenuation, and an enhanced output level for both the high and low frequency range, a combination that ensures clear, natural listening enjoyment at safe and moderate playback levels. These earphones have the most accurate frequency response for monitoring musical material, and are recommended for home stereo and computer use, while also satisfying the requirements of most portable devices.
- Ultra-lightweight audiophile-quality earphones for portable audio listening with transparent, reference-quality sound
- Custom removable filters shape frequency response, protect earphones from earwax
- Foam and plastic flange eartips provide comfortable fit and maximum sound isolation
- Recommended for use with all portable players including Minidisc, CD, DVD and MP3
- High sensitivity with enhanced bass and high frequency output, no additional amplifier required
- High external noise exclusion ensures monitoring at safe, moderate listening levels
- Accurate, real-ear response
||Balanced Armature Stereo Earphones
||20 Hz to 16 kHz
|Maximum Input Power
||3.0 Vrms (Continuous)
||3.5 mm Stereo Mini Plug with 1/4" Adapter
||5' (1.5 m)
||1 oz (28 g)