Side by side comparison and review of Poly Blackwire C725-UC and Poly Voyager 4220 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 Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Product Type | Headset - wired - USB | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | 700 Series | UC Series | |
| Weight | - | 150 g | |
| Recommended Use | Computer | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Poly Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| 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 | |
| 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. |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard DIGITAL Technology | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C725-UC | Poly Voyager 4220 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 Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Controls | Mute, volume, answer/end | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant |
|---|
| CABLE | Poly Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Cable Type | USB cable - 2.04 m | - | |
|---|---|---|---|
| Cable Length | 2.04 m | - |
| FEATURES | Poly Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Features | - | Voice alerts | |
|---|---|---|---|
| Intelligent Assistant | - | Alexa |
| BATTERY AND CHARGING | Poly Blackwire C725-UC | Poly Voyager 4220 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 Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Connector Type | USB (4 PIN USB Type A) | Wireless adapter (4 PIN USB Type A) |
|---|
| OTHERS | Poly Blackwire C725-UC | Poly Voyager 4220 UC |
|---|
| Included Accessories | Carrying case | Bluetooth USB adapter, charging stand | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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