Poly Blackwire C3220 Wired On-Ear Headphones with USB-A Connector
The Poly Blackwire C3220 is a wired, on-ear headset built for professionals who need reliable audio for calls and multimedia.
It uses USB-A connectivity (with USB-C/A adapter in some variants) for plug-and-play simplicity on Windows and Mac.
Boasting hi-fi stereo sound with PC wideband audio and a noise-canceling boom mic, it delivers clarity during voice, webinars, and softphone use.
The headset offers dynamic EQ to adjust audio between voice and media modes automatically.
Lightweight metal headband, leatherette ear cushions, and a rotatable 270° boom make it comfortable during long sessions.
Inline controls allow volume, mute, and answer/end call functions directly from the cord.
It’s certified for platforms like Skype for Business, Cisco Jabber, Avaya, and works with Poly Lens for firmware updates and settings.
Weighing only 64 grams without the cable, it’s light enough for hours of wear.
Top Highlights:
⭐ Stereo sound with PC wideband audio and noise-canceling mic.
⭐ Dynamic EQ automatically optimizes audio for calls vs media.
⭐ USB-A (or USB-C/A adapter) for plug-and-play connectivity.
⭐ Leatherette ear cushions and lightweight metal headband.
⭐ 270° rotating boom for flexible mic positioning.
⭐ Inline controls for volume, mute, answer/end.
⭐ Certified for major UC platforms.
Technical Details:
⚡ Connector Type: USB-A (some SKUs include USB-C/A adapter).
🏆 Speaker Frequency Response: 20 Hz – 20,000 Hz (media mode), 100 Hz – 10,000 Hz (voice mode).
🧩 Microphone Type & Frequency: Noise-canceling boom mic, 100 – 10,000 Hz bandwidth.
🔊 Speaker Sensitivity: approx. 90 dB.
📏 Impedance: 32 Ohm.
📐 Boom Rotation: ~270°.
📎 Headset Weight: ~64 g without cable.
🎧 Headband Adjustment: Metal headband, adjustable fit.
🛠 Inline Controls: Volume, mute, answer/end call.
📜 Warranty: 2 years.
Why You Should Buy It:
✅ Great value for reliable, stereo-quality audio.
✅ Noise-canceling mic makes voice clear in noisy environments.
✅ USB-A connector works with most PCs; some versions include USB-C adapter.
✅ Comfortable design with leatherette cushions and lightweight frame.
✅ Dynamic EQ auto-adjusts between speech and media.
✅ Inline controls for convenient call handling.
✅ Wide compatibility with major UC platforms.
Recommended Use Cases:
Office calls and UC softphone environments
Work-from-home professionals needing clear audio
Webinar presenters and online training sessions
Multimedia consumption (music or video) between calls
Contact centers with wired-headset requirements
Schools and remote education setups
Environments where reliability and comfort matter on low budget
