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Black single-ear on-ear headset with inline controls and USB-C plus USB-A adapter

Poly Blackwire 3210 USB-C with USB-A Adapter Monaural Headset

SKU CH-1GW5-TNT9A

Monaural on-ear headset with noise-cancelling microphone, USB-C and USB-A connectivity, inline call controls and dynamic EQ for voice and music

  • TypeOn-Ear
  • ColorBlack
  • Frequency Response20Hz-10KHz
  • THDOn Ear
  • Input Impedance32 ohms
  • Signal to Noise Ratio(SNR)10 decibels
  • Connect via USB-C or USB-A with included adapter
  • Noise-cancelling microphone filters background sound for clearer calls
  • Dynamic EQ tunes voice quality and music playback automatically
  • Inline controls handle answer, mute and volume adjustments
  • Lightweight 97 g metal headband with single-ear fit

Single-ear wired headset for calls

The Poly Blackwire 3210 is a monaural on-ear headset designed for professionals who spend long hours on voice and video calls. Weighing 97 grams with a lightweight metal headband, it keeps one ear free for office awareness while a noise-canceling microphone filters background sound. Inline controls handle answer, end, mute and volume without reaching for the keyboard.

Upgrade from basic earbuds or built-in audio

Moving up from smartphone earbuds or a laptop microphone gives clearer voice pickup thanks to the 80 Hz to 10 KHz microphone response and 32 ohm driver impedance. The jump is worth it when daily meetings demand reliable mute control and consistent audio levels across Microsoft Teams, Zoom and other platforms.

USB-C with USB-A adapter for any PC or Mac

The headset connects through a USB-C plug and ships with a USB-C to USB-A adapter, so it works on modern and legacy ports alike. No driver installation is required and the inline remote draws power directly from the host, leaving no need for batteries or a separate sound card.

Highlights

  • Connect via USB-C or USB-A with included adapter
  • Noise-cancelling microphone filters background sound for clearer calls
  • Dynamic EQ tunes voice quality and music playback automatically
  • Inline controls handle answer, mute and volume adjustments
  • Lightweight 97 g metal headband with single-ear fit

Specifications

BrandPLT
Series3210
ModelBlackwire 3210 USB-C with USB-C to USB-A Adapter, 9P7X7AA
Part Number9P7X7AA
TypeOn-Ear
ColorBlack
Frequency Response20Hz-10KHz
THDOn Ear
Input Impedance32 ohms
Signal to Noise Ratio(SNR)10 decibels
Sensitivity10 decibels
ConnectorUSB
Ear CouplingOn ear
Weight97 grams
Noise Cancellingnone
Microphone Impedance~3K ohm
Microphone Frequency Response80Hz-10KHz
Microphone Signal to Noise Ratio(SNR)10 decibels
Microphone Sensitivity10 decibels
Featuresnone, USB-C and USB-A Connectivity, Call Control, remote, Wired, On Ear, dynamic_driver, 32 ohm

Questions about this item

Does the 97-gram headset clamp tightly enough for a secure on-ear fit?

The lightweight metal headband is adjustable and designed to provide a comfortable custom fit that stays secure during calls.

How do I plug the USB-C headset into a laptop that only has USB-A ports?

Use the included USB-C to USB-A adapter; connect the headset cable to the adapter, then insert the adapter into the USB-A port.

When should I replace the ear cushion on this monaural headset?

Replace the cushion when it shows visible wear, loses elasticity, or no longer seals against the ear for clear audio.

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