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| Price | $159 to $249 at 3 stores | $299 to $299 at 7 stores | $129 to $241 at 6 stores | $159 to $159 at 2 stores | $299 to $299 at 3 stores |
| CNET editors' rating | Not yet rated | 4.0 stars Excellent | 3.5 stars Very good | 4.0 stars Excellent | 4.0 stars Excellent |
| Average user rating | 5.0 stars out of 1 review | 4.0 stars out of 75 reviews | 4.5 stars out of 6 reviews | 4.5 stars out of 26 reviews | 0 stars No reviews, write one! |
| Release date | May 08, 2009 | August 21, 2009 | September 22, 2011 | December 05, 2009 | September 14, 2012 |
| The Bottom Line | While they're no bargain, the Bose QuietComfort 15s currently offer the best sound and silencing capabilities in a pair of noise-canceling headphones. | If you can't afford Bose's QuietComfort noise-canceling headphones, the attractively designed and more affordable Sony MDR-NC200Ds are worth your consideration. | The Audio-Technica ATH-M50 Professional Studio Monitor Headphones are among the best available for less than $200, offering excellent sound and build quality. | While they may not be quite as comfortable as Bose's ultrapopular QC 15 headphones, the Harman Kardon NCs offer slightly better sound and have a built-in rechargeable battery to power the active noise-cancellation circuitry. | Basic specs |
| Features | See What's the Same or What's different | ||||
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Color | Info unavailable | Silver | Info unavailable | Info unavailable | Info unavailable |
| Connectivity Technology | Wired | Wired | Wired | Wired | Wired |
| Active Noise Canceling | Yes | Yes | Yes | Info unavailable | Info unavailable |
| Audio Specifications | Frequency Response 20 - 20000 Hz - Sensitivity 100 dB - Impedance 32 Ohm | Info unavailable | Frequency Response 8 - 23000 Hz - Sensitivity 103 dB/mW - Impedance 68 Ohm | Frequency Response 15 - 28000 Hz - Sensitivity 99 dB - Impedance 38 Ohm | Frequency Response 16 - 20000 Hz |
| Recommended Use | Info unavailable | Digital player Cellular phone Home audio system PC multimedia | Portable audio system | Info unavailable | Info unavailable |
| Manufacturer Warranty | Info unavailable | Limited lifetime warranty | Info unavailable | Info unavailable | 1 year warranty |
| Headphones Type | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural | Headphones - Binaural |
| Headphones Form Factor | Full size | Full size | Full size | Full size | Full size |
| Product Type | Headphones - Wired | Headphones - Wired | Headphones - Wired | Headphones - Wired | Headphones - Wired |
| Remote Control | Info unavailable | Info unavailable | None | None | Info unavailable |
| Product Description | Koss QZ 900 - Headphones | Bose QuietComfort 15 Acoustic Noise Cancelling - Headphones | Sony MDR NC200D - Headphones | Audio-Technica ATH M50 - Headphones | Harman/kardon NC - Headphones |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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