Detailed comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and Poly - Plantronics Backbeat Pro 2. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Product Type | Headset - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 227 g | 289 g | EPOS I SENNHEISER IMPACT MB 660 UC MS are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
| Colour | - | Black | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | 100 m | Poly - Plantronics Backbeat Pro 2 have a greater operating distance than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.0 EDR | EPOS I SENNHEISER IMPACT MB 660 UC MS have a more advanced version of Bluetooth than Poly - Plantronics Backbeat Pro 2. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Control | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger frequency range than Poly - Plantronics Backbeat Pro 2. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 118 dB | 93 dB | EPOS I SENNHEISER IMPACT MB 660 UC MS have higher sensitivity than Poly - Plantronics Backbeat Pro 2. |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Form Factor | - | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Controls | - | Volume, answer/end, play/pause, next/previous track |
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| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Cable Type | Audio cable Micro-USB cable |
USB charge cable Headphones cable |
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| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Battery Type | Headset battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | 30 hours | 24 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS lasts longer on a single charge than the Poly - Plantronics Backbeat Pro 2. |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | 3 hours | The charging of both headphones last the same time. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Transmission Range | 25 m | 100 m | Poly - Plantronics Backbeat Pro 2 have greater transmission range than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
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| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
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| Connector Type | - | Headphones (mini-phone stereo 3.5 mm 4-pole) |
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| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat Pro 2 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Travel pouch | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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