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| Product | Panasonic ErgoFit RP-HJE120-P (Pink) | Panasonic ErgoFit RP-HJE120-D (Orange) | Panasonic ErgoFit RP-HJE120-R (Red) | Koss 143396 Wireless System (Black) | Koss UR55 |
| Price | $3.98 to $64.64 | $3.95 to $74.15 | $3.49 to $71.37 | $38.67 to $113.13 | $28.25 to $49.99 |
| CNET editors' rating | 4 stars | 4 stars | 4 stars | Info unavailable | Info unavailable |
| Average user rating | 0 stars | 4 stars | 0 stars | 0 stars | 3.5 stars |
| Release date | Info unavailable | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
| Bottom line | For under $10, you'll be hard-pressed to find in-ear headphones that sound better and are more comfortable than the Panasonic ErgoFit RP-HJE120s. | For under $10, you'll be hard-pressed to find in-ear headphones that sound better and are more comfortable than the Panasonic ErgoFit RP-HJE120s. | For under $10, you'll be hard-pressed to find in-ear headphones that sound better and are more comfortable than the Panasonic ErgoFit RP-HJE120s. | Info unavailable | Info unavailable |
| Product Description | Panasonic RP HJE120-P - Headphones | Panasonic RP HJE120-D - Headphones | Panasonic RP HJE120-R - Headphones | Koss HB 70 - Headphones | Koss UR 55 Studio Pulse - Headphones |
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Product Type | Headphones - Wired | Headphones - Wired | Headphones - Wired | Headphones - Wireless - Infrared | Headphones - Wired |
| Recommended Use | Portable audio system | Portable audio system | Portable audio system | Home audio system | PC multimedia |
| Headphones Type | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural |
| Headphones Form Factor | In-ear | In-ear | In-ear | Behind-the-neck mount | Full size |
| Connectivity Technology | Wired | Wired | Wired | Wireless - Infrared | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Audio Specifications | Frequency Response 20 - 20000 Hz - Sensitivity 96 dB/mW - Impedance 16 Ohm | Frequency Response 20 - 20000 Hz - Sensitivity 96 dB/mW - Impedance 16 Ohm | Frequency Response 20 - 20000 Hz - Sensitivity 96 dB/mW - Impedance 16 Ohm | Frequency Response 30 - 15000 Hz | Frequency Response 18 - 22000 Hz - Sensitivity 100 dB - Impedance 36 Ohm |
| Remote Control | None | None | None | None | Info unavailable |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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