Detailed comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and August EP650B. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
DESIGN AND DIMENSIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Product Type | Headset - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | |
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Height | - | 17.66 cm | |
Width | - | 18.86 cm | |
Depth | - | 7.1 cm | |
Weight | 227 g | 235 g | EPOS I SENNHEISER IMPACT MB 660 UC MS are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
Recommended Use | Portable electronics, computer | Portable electronics, computer | |
Bluetooth Range (Operating Distance) | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC MS have a greater operating distance than August EP650B. |
SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Headphones Form Factor | Full size | Full size | |
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Headphones Technology | Dynamic | - | |
Ear Cups Type | Closed | - | |
Foldable | Yes | Yes | Both headphones can be folded. |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.1 | EPOS I SENNHEISER IMPACT MB 660 UC MS have a more advanced version of Bluetooth than August EP650B. |
Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | - | |
Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS are equipped with active noice cancellation. |
Active Noise Cancelling Technology | Adaptive Noise Control | - | |
Sound Output Mode | Stereo | Stereo | |
Frequency Response | 17 - 23000 Hz | 60 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger frequency range than August EP650B. |
Total Harmonic Distortion (THD) | 0.5% | 1% | EPOS I SENNHEISER IMPACT MB 660 UC MS have lower total harmonic distortion than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
Sensitivity | 118 dB | - | |
Impedance | 46 Ohm | - | |
Diaphragm | - | 50 mm | |
Signal-To-Noise Ratio | - | 85 dB | |
Features | - | Bluetooth aptX technology |
MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Form Factor | - | Built-in | |
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Frequency Response | 150 - 6800 Hz | - |
CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable |
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BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Battery Type | Headset battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
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Battery Capacity | - | 220 mAh | |
Battery Life | 30 hours | 10 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS lasts longer on a single charge than the August EP650B. |
Standby Time | 360 hours | 720 hours | August EP650B have longer standby time than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
Charging Time | 3 hours | 2 hour(s) | August EP650B recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Transmission Range | 25 m | - |
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CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Connector Type | - | Headphones (mini-phone stereo 3.5 mm) USB |
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OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | August EP650B |
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Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
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Compatibility | - | iPhone, iPad, iPod, Android phone | |
Service & Support | Limited warranty - 2 years | - |