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Black on-ear stereo headset with USB-C and 3.5 mm plugs, 7 ft cable

HP

HP 8X221AA Blackwire 3325 Stereo USB-C Headset 32 Ohm accessory

SKU CH-FEF7-5GQQS MPN 8X221AA

Stereo on-ear headset with USB-C, 3.5 mm plug and adapter for wired 32 Ohm audio

  • TypeOn-Ear
  • ColorBlack
  • Ear CouplingBinaural
  • Contains Embedded BatteryNo
  • Stereo sound with 32 Ohm drivers for clear calls
  • USB-C and 3.5 mm connections for broad device compatibility
  • Wired design gives reliable audio without battery charging
  • On-ear binaural fit covers both ears for focused listening
  • 7 ft cable provides freedom to move while connected

HP Blackwire 3325 overview

The HP Blackwire 3325 is a wired stereo headset designed for professionals who need reliable audio for calls and multimedia. It connects via USB-C or a 3.5 mm plug, with a USB-C to USB-A adapter included for broad device compatibility. The on-ear, binaural design suits office workers and remote users who want a simple plug-and-play solution.

Passive thermal and power profile

The headset draws power directly from the host device through its USB-C connection and requires no internal battery. With a 32 Ohm impedance, it presents an easy load for laptop and smartphone outputs, generating no noticeable heat during typical use. The wired design eliminates wireless transmission overhead, keeping power draw minimal and operation completely silent.

Sustained-use behaviour

A 7 ft cable provides freedom of movement without the latency or drop-outs associated with wireless links during long sessions. The omnidirectional microphone maintains consistent pickup quality over extended calls, while the lightweight on-ear cups avoid the clamping pressure that can cause fatigue over hours. Passive cooling is inherent, as there are no active components to throttle under continuous load.

Highlights

  • Stereo sound with 32 Ohm drivers for clear calls
  • USB-C and 3.5 mm connections for broad device compatibility
  • Wired design gives reliable audio without battery charging
  • On-ear binaural fit covers both ears for focused listening
  • 7 ft cable provides freedom to move while connected

Specifications

TypeOn-Ear
ColorBlack
Ear CouplingBinaural
Contains Embedded BatteryNo
Shipping weight0.27 kg
Package size208 × 150 × 58 mm

Questions about this item

How do I connect the headset using the USB-C/A adapter, and what step is often missed?

Plug the USB-C end of the adapter into your device, then connect the headset's USB-C cable to the adapter's USB-A port; the missed step is ensuring the adapter is fully seated before joining the headset cable.

Which parts of the Blackwire 3325 stereo headset will need replacement over time?

The ear cushions and the microphone boom are the primary wear items; the 7 ft cable is fixed and not user-replaceable.

What limits comfort during long sessions with the on-ear 32 Ohm design?

On-ear pressure builds heat and fatigue faster than over-ear models, so the clamping force becomes the first comfort limit during sustained use.

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