AWEI ES900i High Performance Headphones Earphone Headsets For iPhone 4/4S MP3 IPOD, Silver
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<b>[Product Information]</b><br>
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<li>Drive : 10mm</li>
<li>Sensitivity: 103dB +/- 3 dB</li>
<li>Impedance: 32£[</li>
<li>Frequency Response: 20 - 20000Hz</li>
<li>Cord Length: 1.1m</li>
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