Side by side comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and Poly Voyager 4220 USB-A. 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 | Poly Voyager 4220 USB-A |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC | Headset - Bluetooth - wireless - USB | |
|---|---|---|---|
| Weight | 227 g | 150 g | Poly Voyager 4220 USB-A are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | 30 m | Poly Voyager 4220 USB-A have a greater operating distance than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS 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 Poly Voyager 4220 USB-A. |
| 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), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| 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 | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger frequency range than Poly Voyager 4220 USB-A. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 118 dB | 94 dB | EPOS I SENNHEISER IMPACT MB 660 UC MS have higher sensitivity than Poly Voyager 4220 USB-A. |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard Technology |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
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| Controls | - | Mute, volume, answer/end, play/pause, next/previous track |
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| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
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| Cable Type | Audio cable Micro-USB cable |
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| FEATURES | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
|---|
| Battery Type | Headset battery rechargeable | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | 30 hours | 12 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS lasts longer on a single charge than the Poly Voyager 4220 USB-A. |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | 360 hours | 312 hours | EPOS I SENNHEISER IMPACT MB 660 UC MS have longer standby time than Poly Voyager 4220 USB-A. |
| Charging Time | 3 hours | 1.5 hour(s) | Poly Voyager 4220 USB-A recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
|---|
| Transmission Range | 25 m | - |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly Voyager 4220 USB-A |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams | |
| Service & Support | Limited warranty - 2 years | - |
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