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| Product | Etymotic Research HF2 Earphones | Etymotic Research HF5 Portable (Cobalt) | Klipsch Image S4i II (Black) | Klipsch Image S4A for Android (Black) |
| Price | $159.00 | $100.99 to $126.62 | $99.00 to $99.99 | $54.99 |
| CNET editors' rating | 3.5 stars | 4 stars | 4 stars | 4 stars |
| Average user rating | 3 stars | 2.5 stars | 5 stars | 2.5 stars |
| Release date | Info unavailable | June 15, 2008 | August 15, 2012 | Info unavailable |
| Bottom line | For iPhone users with a penchant for improved sound quality and a willingness to stick things in their ears,
the Etymotic hf2 earphones are a reasonable option. | The Etymotic hf5 earphones are an excellent option for those who want the highest level of sound isolation without sacrificing sound quality, portability, or style. | 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. | Klipsch's ultracomfortable, noise-isolating ear tips are just one of the reasons I love and recommend the S4-series headphones. If you're an
Android user shopping for a new pair of earbuds, the Image S4A headphones are definitely worth the $99. |
| Product Description | Etymotic hf2 Headset + Earphones - Headset | Etymotic hf5 High-Fidelity Earphones - Headphones | Klipsch Image S4i II - Headset | Klipsch Image S4A - Headphones |
| Packaged Quantity | 1 | 1 | 1 | 1 |
| Product Type | Headset - Wired | Headphones - Wired | Headset - Wired | Headphones - Wired |
| Recommended Use | Cellular phone Portable audio system | Portable audio system | Digital player Cellular phone Tablet | Tablet |
| Headphones Type | Headset - Binaural | Headphones - Binaural | Headset - Binaural | Headphones - Binaural |
| Headphones Form Factor | In-ear | In-ear | In-ear | In-ear |
| Connectivity Technology | Wired | Wired | Wired | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo |
| Audio Specifications | Frequency Response 20 - 16000 Hz - Sensitivity 105 dB - Impedance 16 Ohm | Frequency Response 20 - 15000 Hz - Sensitivity 105 dB - Impedance 16 Ohm | Frequency Response 10 - 19000 Hz - Sensitivity 110 dB - Impedance 18 Ohm | Frequency Response 10 - 19000 Hz - Sensitivity 110 dB/mW - Impedance 18 Ohm |
| Manufacturer Warranty | 2 years warranty | 2 years warranty | 2 years warranty | 2 years warranty |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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Etymotic Research HF2 Earphones compare
