Side by side comparison and review of Sennheiser PXC 550 Wireless and EPOS I SENNHEISER IMPACT MB 660 UC MS. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headset - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Series | PXC | - | |
| Weight | 227 g | 227 g | Both headphones are equally heavy. |
| Recommended Use | Home audio, portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 25 m |
| SOUND QUALITY | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Device ID Profile (DIP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | Adaptive Noise Control | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 17 - 23000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | 0.5% | 0.5% | Both headphones have the same total harmonic distortion. |
| Sensitivity | 110 dB | 118 dB | EPOS I SENNHEISER IMPACT MB 660 UC MS have higher sensitivity than Sennheiser PXC 550 Wireless. |
| Impedance | 490 Ohm | 46 Ohm |
| MICROPHONE | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Frequency Response | - | 150 - 6800 Hz | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
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| Controls | Volume | - |
|---|
| CABLE | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Cable Type | Headphones cable - detachable USB cable - detachable |
Audio cable Micro-USB cable |
|
|---|---|---|---|
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Battery Type | Headphone battery rechargeable | Headset battery rechargeable | |
|---|---|---|---|
| Battery Life | 30 hour(s) | 30 hours | Both headphones last the same amount of time on a single charge. |
| Standby Time | - | 360 hours | |
| Charging Time | 3 hour(s) | 3 hours | The charging of both headphones last the same time. |
| WIRELESS LINK | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Transmission Range | - | 25 m |
|---|
| CONNECTIONS | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | Sennheiser PXC 550 Wireless | EPOS I SENNHEISER IMPACT MB 660 UC MS |
|---|
| Included Accessories | Carrying case, audio cable, in-flight plug adapter, 3.5 mm to 6.3 mm adapter, USB charge cable | Carrying case, Bluetooth adapter, airplane adapter | |
|---|---|---|---|
| Software Included | CapTune | - | |
| Service & Support | - | Limited warranty - 2 years |
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