Side by side comparison and review of Sennheiser HD 820 and Poly Voyager 4220 USB-C. 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 | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Product Type | Headphones - wired | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | UC Series | |
| Weight | 360 g | 150 g | Poly Voyager 4220 USB-C are lighter than Sennheiser HD 820 headphones. |
| Earpad Material | Microfibre | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, mSBC | |
| Noise Isolating | Yes | - | Sennheiser HD 820 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 6 - 48000 Hz | 20 - 20000 Hz | Sennheiser HD 820 offer a larger frequency range than Poly Voyager 4220 USB-C. |
| Sensitivity | 103 dB/Vrms | 94 dB | Sennheiser HD 820 have higher sensitivity than Poly Voyager 4220 USB-C. |
| Impedance | 300 Ohm | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Uni-directional | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Controls | - | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant |
|---|
| CABLE | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Cable Type | Headphones cable - OFC - 3 m | - | |
|---|---|---|---|
| Cable Length | 3 m | - | |
| Plated Connector | Gold | - |
| FEATURES | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Battery Type | - | Headset battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 360 mAh | |
| Battery Life | - | 15 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 820 | Poly Voyager 4220 USB-C |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | - |
|---|
| OTHERS | Sennheiser HD 820 | Poly Voyager 4220 USB-C |
|---|
| Included Accessories | USB flash drive, microfibre cleaning cloth, 4.4 mm Pentaconn stereo jack plug, XLR-4 connector | Bluetooth USB adapter, charging stand | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
