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| Product | Koss KE29 (headphones) | MEElectronics A151 (Black) | Panasonic ErgoFit RP-HJE120-D (Orange) | MEElectronics Hi-Fi Sound-Isolating (Silver) | Sennheiser MM30i |
| Price | $21.67 | $46.99 to $47.44 | $3.95 to $74.15 | $13.72 to $17.99 | $59.95 to $79.95 |
| CNET editors' rating | Info unavailable | 4 stars | 4 stars | 3.5 stars | Info unavailable |
| Average user rating | 4 stars | 4.5 stars | 4 stars | 4.5 stars | 0 stars |
| Release date | Info unavailable | Info unavailable | Info unavailable | February 5, 2010 | Info unavailable |
| Bottom line | Info unavailable | At around $50 online, the MEElectronics A151s are among the most affordable balanced-armature earphones out there and deliver very good sound for the money. | 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. | The MeElectronics M9 sound-isolating earphones are an exceptional value, offering solid audio, a good design, and nice extras for an ultralow price. Anyone looking for cheap replacement earbuds should consider these. | Info unavailable |
| Product Description | Koss KE29 | MEElectronics A151 - Headphones | Panasonic RP HJE120-D - Headphones | MEElectronics M9 Hi-Fi Sound-Isolating | Sennheiser MM 30i |
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Product Type | - Wired | Headphones - Wired | Headphones - Wired | - Wired | - Wired |
| Recommended Use | Digital player Portable audio system | Cellular phone Portable audio system | Portable audio system | Cellular phone Portable audio system PC multimedia | Tablet Cellular phone Portable audio system |
| Color | Violet | Black | Orange | Silver | Info unavailable |
| Headphones Type | Binaural | Headphones - Binaural | Headphones - Binaural | Binaural | Binaural |
| Connectivity Technology | Wired | Wired | Wired | Wired | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Audio Specifications | Frequency Response 15 - 20000 Hz - Sensitivity 100 dB - Impedance 16 Ohm | - Sensitivity 111 dB - Impedance 27 Ohm Frequency Response 15 - 20000 Hz | Frequency Response 20 - 20000 Hz - Sensitivity 96 dB/mW - Impedance 16 Ohm | Frequency Response 20 - 20000 Hz - Impedance 16 Ohm | Frequency Response 17 - 20000 Hz - Sensitivity 106 dB - Impedance 16 Ohm |
| Manufacturer Warranty | Limited lifetime warranty | 1 year warranty | Info unavailable | 1 year warranty | 2 years warranty |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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