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Black on-ear headset with USB-C and 3.5mm cables

HP

HP 8M3V5AA#ABA Poly Blackwire 3325 USB-C Headset accessory

SKU CH-319C-9C76E MPN 8M3V5AA#ABA

A wired on-ear headset with Microsoft Teams certification, USB-C and 3.5 mm connections, 32 Ohm impedance and 20 Hz to 20 kHz frequency response

  • TypeOn-Ear
  • ColorBlack
  • Ear CouplingBinaural
  • Contains Embedded BatteryNo
  • Microsoft Teams certified for reliable call integration
  • Plug-and-play USB-C and 3.5 mm wired connectivity
  • 20 Hz–20 kHz frequency response for clear audio
  • 32 Ohm impedance suits standard devices
  • Lightweight on-ear design for all-day comfort

On-Ear Headset for Microsoft Teams

The Poly Blackwire 3325 is a wired on-ear headset certified for Microsoft Teams. It targets office workers and remote professionals who need a simple plug-and-play audio device for daily calls. The binaural design covers both ears to help focus on conversations in busy environments.

Passive Cooling and Low Power Draw

The headset operates without an embedded battery, drawing power directly from the host device over USB-C. With no active electronics requiring cooling, it runs completely silent and adds negligible load to a laptop or desktop. The 32 Ohm impedance allows efficient operation from standard USB audio outputs.

Dual USB-C and 3.5 mm Connectivity

A single headset provides both a USB Type-C connector and a 3.5 mm mini-phone jack for broad device compatibility. This lets users switch between modern USB-C laptops, desk phones or mobile devices without adapters. Buyers whose equipment offers only USB-A ports will need a separate adapter.

Highlights

  • Microsoft Teams certified for reliable call integration
  • Plug-and-play USB-C and 3.5 mm wired connectivity
  • 20 Hz–20 kHz frequency response for clear audio
  • 32 Ohm impedance suits standard devices
  • Lightweight on-ear design for all-day comfort

Specifications

TypeOn-Ear
ColorBlack
Ear CouplingBinaural
Contains Embedded BatteryNo
Shipping weight0.46 kg
Package size178 × 152 × 51 mm

Questions about this item

How do I connect the Blackwire 3325 to a laptop that only has USB-C ports?

Plug the USB-C connector directly into the laptop; no driver installation is required for the Microsoft Teams certified audio device.

What part of the headset is most likely to wear out first with daily use?

The 3.5 mm mini-phone cable and on-ear cushions are the primary wear items; the headset has no embedded battery to degrade.

What audio limit appears first during long Microsoft Teams calls?

The 20 Hz to 20 kHz frequency response defines the audible range; sustained high-volume output may reach the 32 Ohm driver limits before the USB-C power delivery does.

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