ER-4S Stereo earphone have the most accurate frequency response for reproducing CD and MP3 recordings. The sensitivity is comparable to home and professional earphones. ER-4S Stereo earphone are ideal for home stereo use and computer use. ER-4S Stereo earphone can be used with a Earphone amplifier when using low power portable devices. ER-4S is the earphone preferred by musicians and audiophiles.
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| Manufacturer |
Etymotic Research, Inc |
| Manufacturer Part Number |
ER4S |
| Manufacturer Website Address |
www.etymotic.com |
| Brand Name |
Etymotic |
| Product Line |
MicroPro |
| Product Series |
ER-4 |
| Product Name |
MicroPro ER-4S Stereo Earphone |
| Product Type |
Earphone |
| Technical Information | Connectivity Technology | Wired |
| Operating Distance | 5ft |
| Sound Mode | Stereo |
| Impedance | 100 Ohm |
| Minimum Frequency Response | 20Hz |
| Maximum Frequency Response | 16kHz |
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| Earpiece | Earpiece Technology | Dynamic |
| Earpiece Design | Earbud |
| Earpiece Type | Binaural |
| Ear Cushion | Foam |
| Earpiece Sensitivity | 108 dB SPL |
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| Interfaces/Ports | Host Interface | Mini-phone |
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| Physical Characteristics | Form Factor | Open |
| Weight | 1 oz |
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| Miscellaneous | Package Contents | 1 x MicroPro ER-4S Stereo Earphone
1 x 5 ft. cord with 3.5 mm stereo phone plug
1 x 6.35mm stereo phone adapter plug
6 x white 3-flange eartips
10 x foam eartips (medium)
1 x Filter changing tool
4 x replacement filters
1 x Shirt clip
1 x Zippered pouch
1 x Storage box |
| Additional Information | Lightweight and portable
High accuracy
Noise isolation: 20-25 dB
Acoustic polarity: +electrical = +acoustic
Transducer type: Balanced armature
Maximum output: 122 dB SPL
Maximum continuous input: 3.0 Vrms
External noise exclusion: 35 dB
Response Accuracy: 92%
Optional Accessories:
Airline audio jack adapter
Cable to convert "P" to "S" |
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| Warranty | Warranty | 1 Year |
| Parts Warranty/Labor | 1 Year |
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