Detailed comparison and review of Sennheiser PXC 550-II and Poly Blackwire 3220. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - USB-A | |
|---|---|---|---|
| Series | - | 3200 Series | |
| Height | 17.4 cm | 17.8 cm | |
| Width | 13.6 cm | 15.5 cm | |
| Depth | 6.3 cm | 3.2 cm | |
| Weight | 227 g | 64 g | Poly Blackwire 3220 are lighter than Sennheiser PXC 550-II headphones. |
| Colour | - | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | Portable electronics | Portable electronics, computer |
| SOUND QUALITY | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Adjustable Headband | Yes | Yes | |
| Foldable | Yes | - | Sennheiser PXC 550-II can be folded. |
| 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, AAC, aptX, apt-X LL | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 110 dB | 90 dB | Sennheiser PXC 550-II have higher sensitivity than Poly Blackwire 3220. |
| Impedance | 490 Ohm | 32 Ohm | |
| Diaphragm | 32 mm | 28 mm | Sennheiser PXC 550-II have a thicker diaphragm than Poly Blackwire 3220. |
| Features | - | Echo cancelation, Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 50 - 10000 Hz | 100 - 10000 Hz | Sennheiser PXC 550-II offer a larger microphone frequency range than Poly Blackwire 3220. |
| Sensitivity | -34 dBV/Pascal | -38 dBV/Pascal | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Controls | Mute, volume, answer/end, hold, play/pause, next/previous track | Mute, volume, answer/end, hold, redial |
|---|
| CABLE | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Cable Type | USB charge cable Audio cable |
USB-A cable | |
|---|---|---|---|
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Internet of Things (IoT) Compatible | Yes | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant, Alexa | - | |
| Additional Functions | Touch panel | - |
| BATTERY AND CHARGING | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Battery Type | Headphone battery rechargeable - lithium | - | |
|---|---|---|---|
| Battery Life | 30 hour(s) | - | |
| Battery Life Details | Continuous playback (noise cancelling ON / cable connection): up to 30 hours Continuous playback (noise cancelling ON / Bluetooth): up to 20 hours |
- | |
| Charging Time | 3 hour(s) | - |
| CONNECTIONS | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) USB (micro-USB) |
USB (4 PIN USB Type A) |
|---|
| OTHERS | Sennheiser PXC 550-II | Poly Blackwire 3220 |
|---|
| Included Accessories | Carrying case, airplane adapter | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Skype Certified, Avaya Certified, Cisco Jabber Certified | |
| Supported Host Device OS | - | Windows 10, macOS, Windows 11 | |
| Compliant Standards | MFI | - | |
| Service & Support | Limited warranty - 2 years | - |
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