Side by side comparison and review of Poly Voyager 4220 USB-C and Poly Blackwire C725-UC. 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 | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headset - wired - USB | |
|---|---|---|---|
| Series | UC Series | 700 Series | |
| Weight | 150 g | - | |
| Recommended Use | - | Computer | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wired | |
| 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 | - | |
| Active Noise Cancelling | - | Yes | Poly Blackwire C725-UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard DIGITAL Technology | - | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Form Factor | Headset microphone | Headset microphone | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Uni-directional | - | |
| Frequency Response | - | 100 - 8000 Hz | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant | Mute, volume, answer/end |
|---|
| CABLE | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Cable Type | - | USB cable - 2.04 m | |
|---|---|---|---|
| Cable Length | - | 2.04 m |
| FEATURES | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| 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 | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Connector Type | - | USB (4 PIN USB Type A) |
|---|
| OTHERS | Poly Voyager 4220 USB-C | Poly Blackwire C725-UC |
|---|
| Included Accessories | Bluetooth USB adapter, charging stand | Carrying case | |
|---|---|---|---|
| Software Certification | Certified for Microsoft Teams | - | |
| Service & Support | - | Limited warranty - 2 years |
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