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| Product name | |||||
| Price | Pricing not available | $44.32 to $49.99 | $23.42 to $33.23 | $139.00 to $159.00 | $65.99 to $79.99 |
| CNET editors' rating | |||||
| Average user rating |  | ||||
| Release date | July 20, 2009 | January 01, 1984 | |||
| The Bottom Line | Ultrasone's Zino headphones strike the perfect middle ground of performance, style, and convenience for earbud-eschewing connoisseurs of portable audio. | Koss hit a home run with the PortaPros. Love or hate the design, there's no denying the sound quality here: they're the ideal companion for mobile audiophiles and home theater enthusiasts. | You may be fooled by their featherweight design, but the MEElectronics HT-21s earn our recommendation for their ample soundstage, subtle aesthetic, and portable convenience. | The Audio-Technica ATH-M50 Professional Studio Monitor Headphones are among the best available for less than $200, offering excellent sound and build quality. | The Klipsch Image S4 earphones offer up sound quality on par with and better than sets that cost many times as much; they are a spectacular choice for anyone looking for new earbuds. |
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| Features | |||||
| Product Description | Ultrasone Zino | Koss PortaPro | MEElectronics HT-21 | Audio-Technica ATH M50 | Headphones Klipsch Image S4 |
| Product Type | - Wired | - Wired | - Wired | - Wired | Headphones - Wired |
| Recommended Use | Portable audio system | Portable audio system | Info unavailable | Info unavailable | Portable audio system |
| Color | Gunmetal black | Info unavailable | Black | Info unavailable | Info unavailable |
| Headphones Type | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Headphone - Binaural |
| Headphones Form Factor | Semi-open | Semi-open | Ear-cup | Ear-cup | In-ear ear-bud |
| Connectivity Technology | Wired | Wired | Wired | Wired | Wired |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Response Bandwidth | 25 - 25000 Hz | 15 - 25000 Hz | 20 - 20000 Hz | 15 - 28000 Hz | 10 - 19000 Hz |
| Remote Control | None | None | Info unavailable | None | Info unavailable |
| Manufacturer Warranty | Info unavailable | Limited lifetime warranty | 1 year warranty | Info unavailable | Info unavailable |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices | Pricing not available | | | | |
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Ultrasone Zino compare (headphones)
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