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| Product | Phiaton PS 200 Primal Series Earphones | Klipsch Image S4i II (Black) | Koss 143396 Wireless System (Black) | Koss UR55 | Sennheiser CC 520 (with Ultra Noise-Canceling Microphone & Boom) |
| Price | $271.20 | $96.99 to $99.99 | $38.67 to $113.13 | $28.25 to $49.99 | $140.42 to $259.83 |
| CNET editors' rating | 3.5 stars | 4 stars | Info unavailable | Info unavailable | Info unavailable |
| Average user rating | 0 stars | 5 stars | 0 stars | 3.5 stars | 0 stars |
| Release date | March 1, 2009 | August 15, 2012 | Info unavailable | Info unavailable | Info unavailable |
| Bottom line | The Phiaton PS 200 Primal Series Earphones offer a stylish, durable design and balanced audio response, but the high price and subtle bass may turn off some potential listeners. | The Klipsch Image S4i II in-ear headphones add a new, more durable tangle-resistant flat cord while retaining the S4 model's very respectable sound quality and superior comfort. | Info unavailable | Info unavailable | Info unavailable |
| Product Description | Phiaton Primal Series PS 200 - Headphones | Klipsch Image S4i II - Headset | Koss HB 70 - Headphones | Koss UR 55 Studio Pulse - Headphones | Sennheiser CC 520 - Headset |
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Product Type | Headphones - Wired | Headset - Wired | Headphones - Wireless - Infrared | Headphones - Wired | Headset - Wired |
| Recommended Use | Digital player | Digital player Cellular phone Tablet | Home audio system | PC multimedia | Corded phone |
| Headphones Type | Headphones - Binaural | Headset - Binaural | Headphones - Binaural | Headphones - Binaural | Headset - Binaural |
| Headphones Form Factor | In-ear | In-ear | Behind-the-neck mount | Full size | Full size |
| Connectivity Technology | Wired | Wired | Wireless - Infrared | Wired | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Info unavailable |
| Audio Specifications | - Sensitivity 95 dB - Impedance 39 Ohm | Frequency Response 10 - 19000 Hz - Sensitivity 110 dB - Impedance 18 Ohm | Frequency Response 30 - 15000 Hz | Frequency Response 18 - 22000 Hz - Sensitivity 100 dB - Impedance 36 Ohm | Frequency Response 300 - 3400 Hz - Sensitivity 103 dB - Impedance 300 Ohm |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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