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| Product | Sennheiser RS 220 | Sennheiser RS 180 | Sennheiser RS 170 | Bose Quiet Comfort 15 | Parrot Zik wireless Bluetooth headphones |
| Price | $599.95 to $599.99 | $287.99 to $639.00 | $239.95 to $279.99 | $299.00 to $299.99 | $344.97 to $399.95 |
| CNET editors' rating | 3.5 stars | 3.5 stars | 3.5 stars | 4 stars | 4 stars |
| Average user rating | 2 stars | 0 stars | 3 stars | 4 stars | 4 stars |
| Release date | Info unavailable | Info unavailable | Info unavailable | August 21, 2009 | Info unavailable |
| Bottom line | The Sennheiser RS 220 is one of the best-sounding wireless headphones on the market, but its super sonics don't offset its ambitious price tag when other models in the same line offer similar performance for less. | The Sennheiser RS 180's sound is competitive with similarly priced wired headphones, which should make the RS 180 irresistible to audiophiles seeking to cut the cord. | The RS 170 continues Sennheiser's unchanging dedication to sonic clarity and they're well worth the price for anyone looking to grab wireless sound from a TV, AV receiver, cable box, or game console. | While they're no bargain, the Bose QuietComfort 15s currently offer the best sound and silencing capabilities in a pair of noise-canceling headphones. | Despite some issues, Parrot can make a case for its Ziks being the Porsche of Bluetooth headphones. |
| Product Description | Sennheiser RS 220 - Headphones | Sennheiser RS 180 | Sennheiser RS 170 | Bose QuietComfort 15 Acoustic Noise Cancelling - Headphones | Parrot Zik - Headset |
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Product Type | Headphones - Wireless - Radio | - Wireless - Kleer | - Wireless - Kleer | Headphones - Wired | Headset - Wireless - Bluetooth 2.1 |
| Recommended Use | Home audio system TV | Home audio system TV | Home audio system TV | Digital player Cellular phone | Tablet Digital player Cellular phone |
| Headphones Type | Headphones - Binaural | Binaural | Binaural | Headphones - Binaural | Headset - Binaural |
| Connectivity Technology | Wireless - Radio | Wireless - Kleer | Wireless - Kleer | Wired | Wireless - Bluetooth 2.1 |
| Sound Output Mode | Stereo | Stereo | Stereo | Stereo | Stereo |
| Audio Specifications | Frequency Response 16 - 22000 Hz - Sensitivity 106 dB - Impedance 150 Ohm | Frequency Response 18 - 21000 Hz - Sensitivity 106 dB - Impedance 32 Ohm | Frequency Response 18 - 21000 Hz - Sensitivity 110 dB - Impedance 32 Ohm | Info unavailable | Frequency Response 10 - 20000 Hz - Impedance 32 Ohm |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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Sennheiser RS 220 compare
