In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and Sennheiser SC 75 USB MS. 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 | Sennheiser SC 75 USB MS |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Weight | 227 g | - | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | - | |
| 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 | 60 - 16000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than Sennheiser SC 75 USB MS. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | - | |
| Impedance | 46 Ohm | - | |
| Max Sound Pressure | - | 118 dB |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
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| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Noise Cancelling | - | Yes | Sennheiser SC 75 USB MS microphone can cancel out ambient noise. |
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
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| Cable Type | Audio cable Micro-USB cable |
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| FEATURES | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 700 mAh | - | |
| Battery Life | 30 hours | - | |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | - |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
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| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
|---|
| Connector Type | - | USB (4 PIN USB Type A) Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | Sennheiser SC 75 USB MS |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Carrying pouch | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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