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| Price | $175.99 to $319.99 | $53.99 | $91.98 to $199.95 | $349.00 | $33.22 to $44.48 |
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| Release date | October 22, 2008 | July 13, 2007 | June 15, 2006 | January 01, 1984 | |
| The Bottom Line | The Clear Harmony holds its own against the competition. But without a price incentive, few users will risk choosing an unknown brand over an established one. | Frequent-fliers on a budget might want to consider the Able Planet NC200 Clear Harmony headphones for their comfort, but serious connoisseurs of noise-canceling headphones will be unimpressed by the lackluster sound and questionable build quality. | The JVC HA-NC250 Noise Canceling Headphones make a great travel companion for those who demand quality sound. And they may not be cheap, but they seem that way next to the Bose QuietComfort 3. | 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. | 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. |
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| Features | |||||
| Response Bandwidth | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
15 - 25000 Hz |
| Headphones Form Factor | Info unavailable | Info unavailable |
Ear-cup |
Ear-cup |
Semi-open |
| Sound Output Mode | Info unavailable | Info unavailable |
Stereo |
Stereo |
Stereo |
| Connectivity Technology | Info unavailable | Info unavailable |
Wired |
Cable |
Wired |
| Headphones Type | Info unavailable | Info unavailable |
Headphones - Binaural |
Headphones - Binaural |
Headphones - Binaural |
| Active Noise Canceling | Info unavailable | Info unavailable |
Yes |
Yes |
Info unavailable |
| Product Type | Info unavailable | Info unavailable |
Headphones - Wired |
Headphones - Cable |
Headphones - Wired |
| Recommended Use | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
Portable audio system |
| Product Description | Info unavailable | Info unavailable |
JVC HA NC250 - Headphones |
Bose QuietComfort 3 Acoustic Noise Cancelling - Headphones |
Koss PortaPro Headphones |
| Manufacturer Warranty | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
Limited lifetime warranty |
| Remote Control | Info unavailable | Info unavailable |
None |
Info unavailable |
None |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices |
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