In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and Marshall Major III Bluetooth. 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 | Marshall Major III Bluetooth |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 227 g | 178 g | Marshall Major III Bluetooth are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Colour | - | Brown | White | Black | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC have a greater operating distance than Marshall Major III Bluetooth. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | 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 | aptX | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC 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 Marshall Major III Bluetooth. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 97 dB | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than Marshall Major III Bluetooth. |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
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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 | Marshall Major III Bluetooth |
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| Controls | - | Power on/off, volume control, answer/end, play/pause, reject call, shuffle |
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| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable - coiled - L shaped | |
|---|---|---|---|
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 700 mAh | - | |
| Battery Life | 30 hours | 30 hour(s) | Both headphones last the same amount of time on a single charge. |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | 3 hour(s) | The charging of both headphones last the same time. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
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| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm 4-pole) Audio line-out (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | Marshall Major III Bluetooth |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Micro-USB charging cable | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 1 year |
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