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Home / Manufacturer / Etymotic / Etymotic ER4-P ER-4 microPro™ Reference-Quality Earphones
|  | Etymotic ER4-P ER-4 microPro™ Reference-Quality Earphones |
 
- Noise isolation far surpassing that of active noise canceling earphones
- Transparent, reference-quality sound
- Frequency response: 20Hz-16kHz, ± 4dB
- Impedance (ER-4P): 27 Ohms nominal
- No batteries required
- 5' cord with 3.5mm stereo phone plug
- Includes carrying case, 1/4" stereo adapter plug, six 3-flange eartips, 10 foam eartips, filter changing tool, 4 replacement filters and shirt clip
- Brand New
- Full Manufacturer's Warranty
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