nüvifone™. The navigation phone.| Remove from comparison | Remove | Remove | Remove | Remove | Remove |
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| Price | $29.05 to $39.99 | $79.00 to $79.99 | $26.99 | $74.95 to $99.99 | $349.00 to $349.95 |
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| Release date | January 01, 1984 | January 01, 2008 | November 01, 2001 | June 15, 2006 | |
| The Bottom Line | 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. | 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. | The Jabra BT8030 is great for those who want a Bluetooth speaker and headphones all in one device, but beware of certain design pitfalls. | Sennheiser's versatile headphones sound great on DVDs and all kinds of music. | With the QuietComfort 3s, Bose has done a remarkable job of shrinking its popular noise-canceling headphones while achieving similarly impressive sound quality--but that engineering feat doesn't come cheap. |
| Similar Products | Compare more products | Compare more products | Compare more products | Compare more products | Compare more products |
| Features | |||||
| Response Bandwidth | 15 - 25000 Hz | Info unavailable | 20 - 20000 Hz | 8 - 25000 Hz | Info unavailable |
| Localization | Info unavailable | Info unavailable | Info unavailable | English | Info unavailable |
| Headphones Form Factor | Semi-open | In-ear canalphone | Convertible | Ear-cup | Ear-cup |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Microphones Included | Info unavailable | Info unavailable | 2 | Info unavailable | Info unavailable |
| Color | Info unavailable | Info unavailable | Info unavailable | Black | Info unavailable |
| Microphone Operation Mode | Info unavailable | Info unavailable | Mono | Info unavailable | Info unavailable |
| Microphone Technology | Info unavailable | Info unavailable | Electret condenser | Info unavailable | Info unavailable |
| Connectivity Technology | Wired | Wired | Wireless - Bluetooth 2.0 | Wired | Cable |
| Headphones Type | Headphones - Binaural | Headphone - Binaural | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural |
| Active Noise Canceling | Info unavailable | Info unavailable | Info unavailable | Info unavailable | Yes |
| Product Type | Headphones - Wired | Headphones - Wired | Headset - Wireless - Bluetooth 2.0 | Headphones - Wired | Headphones - Cable |
| Microphone | Info unavailable | Info unavailable | Built-in | Info unavailable | Info unavailable |
| Recommended Use | Portable audio system | Info unavailable | PC multimedia Cellular phone Portable audio system | Home audio system Professional audio system | Info unavailable |
| Product Description | Koss PortaPro Headphones | Headphones | JABRA BT8030 - Headset | Sennheiser HD 280 - Headphones | Bose QuietComfort 3 Acoustic Noise Cancelling - Headphones |
| Manufacturer Warranty | Limited lifetime warranty | Info unavailable | Info unavailable | 2 years warranty | Info unavailable |
| Remote Control | None | Info unavailable | None | None | Info unavailable |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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Koss PortaPro Headphones comparison
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