Plantronics Blackwire 3320 USB Headset
We designed the Blackwire 3320 for professionals who need reliable stereo audio throughout the workday. This USB wired headset connects to your Windows or Mac computer instantly — no software required. The dual-ear design delivers balanced sound for calls, webinars, and video conferences.
Our leatherette ear cushions and padded headband reduce pressure during extended wear. The flexible boom microphone features dynamic noise-canceling technology to filter background office noise. You control volume, mute, and call answer/end functions directly from the inline controller. We built this headset to meet the demands of call centers, remote workers, and anyone who spends hours in virtual meetings.
What's included with your Blackwire 3320
Audio quality and microphone performance
The Blackwire 3320 uses 32mm dynamic drivers to reproduce the full frequency range of human speech and music. We tuned the stereo output for balanced mids and clear highs — you’ll hear every word on customer calls and presentations without fatigue. The wideband audio codec ensures voices sound natural, not tinny.
Our noise-canceling microphone sits on a 270-degree rotating boom so you can position it on either side. The dynamic element captures your voice while suppressing keyboard clicks, HVAC hum, and ambient chatter. On busy workdays this technology keeps your voice front and center for the person on the other end.
Comfort and build quality
We wrapped the ear cushions in soft leatherette that feels cool against your skin. The foam padding conforms to the shape of your ears, creating a gentle seal that blocks some external noise without clamping pressure. Our headband uses the same foam-and-leatherette construction with a self-adjusting arc — you slide it on and it finds the right fit automatically.
The Blackwire 3320 weighs just 4.6 ounces, light enough that you’ll forget you’re wearing it during marathon conference days. We reinforced the cable with Kevlar at the strain-relief points where most headsets fail. The plastic yokes and boom arm passed our 50,000-cycle flex test to ensure they survive daily folding and unfolding. Many users in contact centers compare the durability to models twice the price.
What's included in the box
Your Blackwire 3320 package contains the headset with attached 6.5-foot USB-A cable, a quick-start guide, and our two-year advance replacement warranty card. The USB connector is ready to use the moment you plug it in — our chipset handles all driver installation automatically on Windows 7 and later, macOS 10.10 and later, and Chrome OS.
We don’t include a carrying case with this model, but the headset folds flat for storage in a desk drawer or laptop bag. If you need stereo sound and prefer an ultra-compact form, the Blackwire 3220 offers the same audio quality in an on-ear design that takes up less space.
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Questions about the Blackwire 3320
Yes, the Blackwire 3320 is fully compatible with macOS 10.10 and later. The USB-A connector installs drivers automatically when you plug it in — no additional software needed. Your Mac will recognize it as both a microphone and audio output device. You can select it in System Preferences under Sound or directly within applications like Zoom and FaceTime.
Absolutely. The Blackwire 3320 works with any softphone or unified communications platform that supports standard USB audio devices. We've tested it with RingCentral, 8×8, Avaya, Cisco Jabber, and Vonage. The inline call answer/end button may not integrate with every platform — check your softphone's settings to enable headset control if available.
The permanently attached cable measures 6.5 feet from the headset to the USB-A connector. That length gives you freedom to move around your desk or lean back in your chair without feeling tethered. If you need more reach for a standing desk setup, a passive USB extension cable will work without degrading audio quality.
Our Blackwire 3320 uses dynamic noise-canceling technology, not passive noise reduction. The microphone's dual-element design actively compares your voice signal to ambient sound and filters out steady-state background noise like HVAC systems, traffic, and office chatter. Sudden loud sounds like a door slam may still come through, but consistent noise disappears from your transmitted audio.
Both models deliver stereo USB audio with noise-canceling microphones. The Blackwire 3320 uses over-ear cushions that fully surround your ears, while the 3220 has on-ear pads that rest against your ears. The 3320 offers better passive noise isolation and is more comfortable for all-day wear. The 3220 is lighter and more compact for travel. Audio quality and call performance are identical between the two.
Yes, replacement leatherette ear cushions are available as a spare part. After heavy daily use the cushions may compress or develop small cracks in the surface material. Our support team can provide the correct part number for your region. The cushions snap on and off the speaker housing without tools — you'll have fresh padding installed in about ninety seconds.
The Blackwire 3320 does not have a dedicated mute LED on the headset itself. When you press the mute button on the inline controller, you'll feel a tactile click and your computer's softphone or conferencing app will show mute status. Some users place a small piece of colored tape on the mute button as a visual reminder when they've silenced their microphone.