In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and August EP650B. 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 | August EP650B |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | |
|---|---|---|---|
| Height | - | 17.66 cm | |
| Width | - | 18.86 cm | |
| Depth | - | 7.1 cm | |
| Weight | 227 g | 235 g | EPOS I SENNHEISER IMPACT MB 660 UC are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Recommended Use | Portable electronics, computer | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC have a greater operating distance than August EP650B. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | August EP650B |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| 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 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) | - | |
| 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 | 60 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than August EP650B. |
| Total Harmonic Distortion (THD) | <0.5% | 1% | EPOS I SENNHEISER IMPACT MB 660 UC have lower total harmonic distortion than EPOS I SENNHEISER IMPACT MB 660 UC. |
| 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 | August EP650B |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | August EP650B |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | August EP650B |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 700 mAh | 220 mAh | EPOS I SENNHEISER IMPACT MB 660 UC have a higher battery capacity than August EP650B. |
| Battery Life | 30 hours | 10 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC 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. |
| Charging Time | 3 hours | 2 hour(s) | August EP650B recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | August EP650B |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | August EP650B |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm) USB |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | August EP650B |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
|---|---|---|---|
| Compatibility | - | iPhone, iPad, iPod, Android phone | |
| Service & Support | Limited warranty - 2 years | - |
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