In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and Poly - Plantronics Backbeat Pro 2. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Poly - Plantronics Backbeat Pro 2 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 227 g | 289 g | EPOS I SENNHEISER IMPACT MB 660 UC are lighter than EPOS I SENNHEISER IMPACT MB 660 UC 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. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | Poly - Plantronics Backbeat Pro 2 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC 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 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) | |
| Bluetooth Audio Codec | SBC, aptX | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC 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 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 | Poly - Plantronics Backbeat Pro 2 |
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| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC | 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 | Poly - Plantronics Backbeat Pro 2 |
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| Cable Type | Audio cable Micro-USB cable |
USB charge cable Headphones cable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | Poly - Plantronics Backbeat Pro 2 |
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| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 700 mAh | - | |
| Battery Life | 30 hours | 24 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC 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 | 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. |
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| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Poly - Plantronics Backbeat Pro 2 |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | 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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