In depth comparison and review of Poly Blackwire C225 and Poly Voyager 4220 (Office 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 | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Product Type | Headset - wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | Office Series | |
| Weight | - | 150 g | |
| Headband Material | Metal | - | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | - | 91 m |
| SOUND QUALITY | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| 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 | |
| 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 Technology | SoundGuard DIGITAL Technology | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Controls | Mute, volume, answer/end | Mute, volume, answer/end, next/previous track, redial |
|---|
| CABLE | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Cable Type | Headset cable | - |
|---|
| FEATURES | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Battery Type | - | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| 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 C225 | Poly Voyager 4220 (Office Series) |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm 4-pole) | USB (24 pin USB-C) |
|---|
| OTHERS | Poly Blackwire C225 | Poly Voyager 4220 (Office Series) |
|---|
| Software Certification | - | Certified for Microsoft Teams | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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