In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and EPOS I SENNHEISER IMPACT MB 660 UC. 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 MS | EPOS I SENNHEISER IMPACT MB 660 UC |
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| Product Type | Headset - Bluetooth - wireless - NFC | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | |
|---|---|---|---|
| Weight | 227 g | 227 g | Both headphones are equally heavy. |
| Recommended Use | Portable electronics, computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 25 m | 25 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | EPOS I SENNHEISER IMPACT MB 660 UC |
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| 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), 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), Device ID Profile (DIP) | |
| Bluetooth Audio Codec | - | SBC, aptX | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Control | NoiseGard active noise compensation | |
| 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 | 118 dB | 118 dB | Both headphones offer the same sensitivity. |
| Impedance | 46 Ohm | 46 Ohm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | EPOS I SENNHEISER IMPACT MB 660 UC |
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| Form Factor | - | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | 150 - 6800 Hz | The frequency response of the microphones in both headphones is the same. |
| Microphones Included | - | 3 |
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | EPOS I SENNHEISER IMPACT MB 660 UC |
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| Cable Type | Audio cable Micro-USB cable |
Audio cable Micro-USB cable |
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| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | EPOS I SENNHEISER IMPACT MB 660 UC |
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| Battery Type | Headset battery rechargeable | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 700 mAh | |
| Battery Life | 30 hours | 30 hours | Both headphones last the same amount of time on a single charge. |
| Standby Time | 360 hours | 360 hours | Both headphones have the same lenght of standby time. |
| 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 | EPOS I SENNHEISER IMPACT MB 660 UC |
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| Transmission Range | 25 m | 25 m | The transmission range of both headphones is the same. |
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| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | EPOS I SENNHEISER IMPACT MB 660 UC |
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| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Carrying case, Bluetooth adapter, airplane adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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