Poly Blackwire 5220 Stereo USB‑C Headset + 3.5 mm Plug + USB‑C/A Adapter:

🎧 Key Features & Design

• Versatile connectivity: Equipped with USB‑C (plus a USB‑A adapter) for PCs and laptops, and a 3.5 mm jack for mobile devices—ideal for switching between workstations and phones seamlessly

• Stereo, on‑ear form factor: Soft, oversized leatherette ear cushions and a lightweight, cushioned metal headband provide excellent passive noise isolation and all-day comfort

• Fold-flat design: Ear cups rotate and fold flat, and the headset includes a carry case—for easy transport

• Flexible 280° boom mic: Delivers clear, crisp voice with noise reduction—loud settings in testing showed good background suppression

• Inline controls: Answer/end calls, mute, volume, and media control are conveniently accessible on the cable

• Hearing protection: SoundGuard DIGITAL safeguards against loud audio spikes above 118 dBA

🔊 Audio & Mic Performance

• Rich audio quality: “A solid sounding headset… above mid‑grade audio” suitable for clear calls and satisfactory multimedia playback

• Strong mic clarity: Picks up speech crisply, even in noisy environments—beating out typical office ambient noise .

• Reddit user feedback:

  “Build quality is great, sound is clear with a ton of bass… mic quality is crystal clear… comes with a USB A cable… integrated DAC enhances audio”