In depth comparison and review of Sennheiser HD 300 PROtect and Poly Voyager 4220 Office (UC Series). 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 | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | UC Series | |
| Weight | 297 g | 150 g | Poly Voyager 4220 Office (UC Series) are lighter than Sennheiser HD 300 PROtect headphones. |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | Yes | - | Sennheiser HD 300 PROtect are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 6 - 25000 Hz | 20 - 20000 Hz | Sennheiser HD 300 PROtect offer a larger frequency range than Poly Voyager 4220 Office (UC Series). |
| Max Input Power | 500 mW | - | |
| Total Harmonic Distortion (THD) | <0.1% | - | |
| Sensitivity | 108 dB | 94 dB | Sennheiser HD 300 PROtect have higher sensitivity than Poly Voyager 4220 Office (UC Series). |
| Impedance | 64 Ohm | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard Technology |
| MICROPHONE | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Controls | - | Mute, volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Cable Type | Headphones cable - 1.55 m | - | |
|---|---|---|---|
| Cable Length | 1.55 m | - |
| FEATURES | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Features | EPOS ActiveGard | Voice alerts |
|---|
| BATTERY AND CHARGING | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Battery Type | - | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | - | 12 hour(s) | |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | - | 312 hours | |
| Charging Time | - | 1.5 hour(s) |
| CONNECTIONS | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | Sennheiser HD 300 PROtect | Poly Voyager 4220 Office (UC Series) |
|---|
| Included Accessories | 6.3 mm (1/4") stereo adapter | Wireless headset system base, Bluetooth USB-C adapter |
|---|
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