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High fidelity earphone - white box
MODEL- ER-4S VENDOR- ETYMOTIC RESEARCH

FEATURES- ER 4S microPro Noise Isolating Earphones- White Box package
Portable earphones can be used with portable CD, MP3, DVD and other
players without requiring an additional amplifier. The higher
sensitivity and enhanced bass of the ER-4P have made it the most
popular earphone for most uses.
The ER-4 MicroPro earphones are the next best thing to live music,
with noise isolation far surpassing that of active noise-canceling
earphones. The ER-4s require NO batteries, and can be plugged into
any audio source. Their external noise exclusion -- 35 dB with
3-flange eartips, 42 dB with foam eartips -- allows you to hear the
full dynamic range of recordings without having to play them at
unnaturally high and unsafe levels.
- Transparent, reference-quality sound
- For audiophiles, performing musicians and recording engineers
- For mixing, monitoring and critical listening
- Accurate real-ear response
- Unsurpassed isolation from outside sound
Includes ER-4 MicroPro earphones, 5 ft. cord with 3.5 mm stereo phone
plug, 1/4" stereo phone adapter plug, Six 3-flange eartips, 10 foam
eartips, Filter changing tool, 4 replacement filters, Shirt clip,
Pouch and Storage box.
* Response Accuracy
ER-4 MicroPro Earphones are designed to match the acoustic response of
the open ear. Music is naturally bright, but not harsh. The lack of
coloration results in smooth treble, full bass, clear and natural piano,
percussion and orchestral music.
* Noise Reduction
ER-4 MicroPro Earphones provide the highest isolation of any earphone:
35

Etymotic Research, Inc. (ER) is a research, development and manufacturing company located in Elk Grove Village, Illinois. The name "Etymotic" (pronounced "et-im-OH-tik.") means "true to the ear." Established in 1983, ER's mission is to design high-fidelity products to measure, improve and protect hearing. ER has developed and patented some of the most innovative hearing technology available today.

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Hi-Fi Stereo Earphones from Etymotic Research

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