Side by side comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and Sennheiser MOMENTUM 4. 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 | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless, wired - 2.5 mm jack, USB-C | |
|---|---|---|---|
| Height | - | 19.5 cm | |
| Width | - | 18 cm | |
| Depth | - | 4.63 cm | |
| Weight | 227 g | 293 g | EPOS I SENNHEISER IMPACT MB 660 UC MS are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
| Colour | - | Black | White | |
| Earpad Material | - | Synthetic leather | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | - | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wireless, wired | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.2 | Sennheiser MOMENTUM 4 have a more advanced version of Bluetooth than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| 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), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX Adaptive | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Control | Adaptive Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 17 - 23000 Hz | 6 - 22000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger frequency range than Sennheiser MOMENTUM 4. |
| Total Harmonic Distortion (THD) | 0.5% | 0.3% | Sennheiser MOMENTUM 4 have lower total harmonic distortion than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Sensitivity | 118 dB | 106 dB | EPOS I SENNHEISER IMPACT MB 660 UC MS have higher sensitivity than Sennheiser MOMENTUM 4. |
| Impedance | 46 Ohm | 60 Ohm | |
| Diaphragm | - | 42 mm | |
| Features | - | Smart Pause, Crystal-clear Calls |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | - | MEMS-directional | |
| Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 microphone can cancel out ambient noise. |
| Frequency Response | 150 - 6800 Hz | 50 - 10000 Hz | Sennheiser MOMENTUM 4 offer a larger microphone frequency range than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Microphones Included | - | 4 |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Controls | - | Volume, play/pause, equaliser preset |
|---|
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable - L shaped / sub-mini phone 2.5 mm 4-pole - 1.2 m USB-C to USB-A cable - detachable - 1.2 m |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes |
| FEATURES | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Features | - | Transparent Hearing mode, auto power on/off | |
|---|---|---|---|
| Sensors | - | Touch sensor | |
| Additional Functions | - | Smart Touch Control, USB-C charging port |
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Battery Type | Headset battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 700 mAh | |
| Battery Life | 30 hours | 60 hour(s) | Sennheiser MOMENTUM 4 lasts longer on a single charge than the EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | 2 hour(s) | Sennheiser MOMENTUM 4 recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Included Qty | - | 1 |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Connector Type | - | Headphones (sub-mini phone 2.5 mm 4-pole) USB (24 pin USB-C) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Sennheiser MOMENTUM 4 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Carrying case, airplane adapter, headphones cable (1.2 m), USB-C charging cable (1.2m) | |
|---|---|---|---|
| Software Included | - | Sennheiser Smart Control | |
| Compliant Standards | - | Bluetooth Class 1 | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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