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Polk Audio UltraFit 500 vs Koss RUK20

 

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Polk Audio UltraFit 500

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Koss RUK20

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Condition New StockNew Stock
General Polk Audio UltraFit 500Koss RUK20
Fit Style In-ear/EarbudIn-ear/Earbud
Earcup Type ClosedClosed
Earcup Width x Height 0.625 x 0.6250.492" x 0.492"
Noise-canceling NoNo
Bluetooth NoNo
Mic For Taking Calls NoNo
iPhone Control No---
Android Control No---
Frequency Response
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18-23k Hz16-20k Hz
Sensitivity
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118 dB110 dB
Impedance
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16 Ohms16 Ohms
Weight
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0.5 ouncesNot Given
Cord Length
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14", 41"48"
1/4-inch Adapter Included NoNo
Volume Control
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NoNo
Parts Warranty
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1 YearLifetime
Labor Warranty
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1 YearLifetime
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