Side by side comparison and review of Poly Blackwire 325 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 | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - Bluetooth - wireless - USB | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 150 g | |
| Headband Material | Metal | - | |
| Bluetooth Range (Operating Distance) | - | 30 m |
| SOUND QUALITY | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| 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) | |
| 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 Technology | SoundGuard Technology | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Controls | Mute, volume, answer/end | Mute, volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Cable Type | Headset cable - 2.13 m | - | |
|---|---|---|---|
| Cable Length | 2.13 m | - |
| FEATURES | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Features | - | Voice alerts | |
|---|---|---|---|
| Additional Functions | DSP | - |
| BATTERY AND CHARGING | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| 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 | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
- |
|---|
| OTHERS | Poly Blackwire 325 | Poly Voyager 4220 USB-A |
|---|
| Included Accessories | - | Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams | |
| Service & Support | Limited warranty - 2 years | - |
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