In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and Bang & Olufsen Beoplay H4. 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 | Bang & Olufsen Beoplay H4 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless - 3.5 mm jack | |
|---|---|---|---|
| Height | - | 22 cm | |
| Width | - | 19.4 cm | |
| Depth | - | 5 cm | |
| Weight | 227 g | 235 g | EPOS I SENNHEISER IMPACT MB 660 UC are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Colour | - | Black | Charcoal grey | Sandstone | Tangerine | Violet | |
| Body Material | - | Stainless steel, aluminium | |
| Earpad Material | - | Leather | |
| Headband Material | - | Leather | |
| 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 Bang & Olufsen Beoplay H4. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | - | Yes | |
| 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 4.2 | 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) | - | |
| Bluetooth Audio Codec | SBC, 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 - 22000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than Bang & Olufsen Beoplay H4. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 91 dB/mW | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than Bang & Olufsen Beoplay H4. |
| Impedance | 46 Ohm | 20 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 150 - 6800 Hz | - | |
| Audio Input Details | - | Omni-directional | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
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| Controls | - | Volume, answer/end, play/pause, next/previous track, pair mode |
|---|
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - braided fabric - 1.25 m | |
|---|---|---|---|
| Cable Length | - | 1.25 m |
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 700 mAh | 600 mAh | EPOS I SENNHEISER IMPACT MB 660 UC have a higher battery capacity than Bang & Olufsen Beoplay H4. |
| Battery Life | 30 hours | 19 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC lasts longer on a single charge than the Bang & Olufsen Beoplay H4. |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | 2.5 hour(s) | Bang & Olufsen Beoplay H4 recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Transmission Range | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC have greater transmission range than Bang & Olufsen Beoplay H4. |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Connector Type | - | Headphones (mini-phone 3.5mm) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | Bang & Olufsen Beoplay H4 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | USB charging cable (25cm) | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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