Plantronics C3320 USB-C Headset | Professional Audio for Modern Workspaces
We built the C3320 USB-C headset for professionals who demand crystal-clear audio without the hassle of adapters or dongles. This single-ear corded headset connects directly to USB-C ports on modern laptops, tablets, and smartphones, delivering studio-quality sound for unified communications platforms including Microsoft Teams, Zoom, and Google Meet.
Our signature noise-canceling microphone with acoustic echo cancellation ensures your voice cuts through background office chatter, while the wideband audio speaker reproduces every nuance of the conversation. The adjustable leatherette ear cushion and over-the-head design provide comfort through marathon conference calls, and inline controls put mute, volume, and call answer functions at your fingertips. Whether you’re working from a corporate office, home workspace, or hybrid environment, the C3320 delivers the professional-grade audio performance our customers have trusted for decades.
- Native USB-C digital connection—no adapters required for modern devices
- Wideband audio (150 Hz–6.8 kHz) for natural voice reproduction
- Noise-canceling boom microphone with acoustic echo cancellation
- Inline controls: mute, volume up/down, call answer/end
- Monaural design with leatherette ear cushion and adjustable headband
USB-C connectivity for modern workflows
The C3320 eliminates the adapter clutter that plagues many office setups. Our engineers chose native USB-C because it’s the universal port standard across today’s laptops, tablets, and smartphones—one headset works across your entire device ecosystem. The digital connection delivers lossless audio quality that analog 3.5mm jacks simply can’t match, and plug-and-play drivers mean you’re live on your next call within seconds of unboxing.
We’ve tested compatibility with over 200 device models, from Dell XPS and HP EliteBook systems to MacBook Pro, Surface Pro, and Samsung Galaxy tablets. The 6.5-foot cable provides enough reach to stand during calls or pivot between monitors without disconnecting. For teams standardizing on USB-C infrastructure, the C3320 future-proofs your audio investment while our Blackwire 3320 lineup offers USB-A alternatives for legacy systems still in rotation.
Acoustic engineering for open offices
Noise-canceling microphone technology
Our Digital Signal Processing (DSP) actively monitors ambient sound and suppresses frequencies below 150 Hz and above 6.8 kHz—the ranges where HVAC hum, keyboard clatter, and neighboring conversations live. The flexible boom positions the mic capsule precisely 1.5 inches from your mouth, capturing your voice while rejecting side and rear audio by up to 20 dB. Acoustic echo cancellation prevents that hollow conference-room reverb when multiple participants speak simultaneously.
Wideband audio clarity
The 32mm neodymium speaker reproduces the full wideband spectrum, so consonants stay crisp and you catch every detail in technical discussions. We’ve tuned the frequency response specifically for human speech rather than music—voices sound natural and present without the tinny harshness of cheaper headsets. The leatherette ear cushion creates a gentle seal that attenuates external noise by approximately 15 dB, letting you focus even when the workspace gets loud.
All-day wearing comfort
We designed the C3320’s over-the-head band with memory-metal core and soft leatherette padding that distributes pressure across the crown rather than concentrating it at two points. The monaural (single-ear) configuration keeps your other ear free to hear colleagues approaching or remain aware of your surroundings—critical for safety in shared spaces and preferred by many users who find binaural headsets isolating during long wear.
The ear cushion rotates 180 degrees and tilts to match individual head shapes, while the telescoping arms adjust across a 3-inch range. At just 2.9 ounces, the C3320 is light enough that most users forget they’re wearing it after the first few minutes. The leatherette cushion wipes clean with a damp cloth, and we offer replacement cushion kits (sold separately) to extend headset life beyond the typical two-year refresh cycle.
Other professional wired headsets in our UC lineup
What people are saying
Common questions about the C3320 USB-C headset
Yes, the C3320 works with any device that has a USB-C port and supports USB audio class. We’ve tested it with Android phones and tablets from Samsung, Google Pixel, and other manufacturers. It also works with iPad Pro and iPad Air models that feature USB-C ports.
For iPhones with Lightning ports, you would need Apple’s Lightning-to-USB-C adapter, though we generally recommend our wireless Bluetooth models for iOS devices since they integrate more seamlessly with the Apple ecosystem.
The C3320 requires a physical USB-C connection, so you’ll need to unplug and replug when switching between devices. If you frequently move between multiple computers, consider pairing it with a USB-C hub or switch box that lets you toggle audio sources with a button press.
Alternatively, our wireless DECT or Bluetooth headsets support multi-device pairing, allowing you to switch between two or three computers without cables. The wired C3320 is ideal when you work primarily from one workstation or when your organization’s security policy restricts wireless devices.
The C3320 uses single-microphone DSP noise cancellation, which effectively suppresses steady-state background noise like HVAC systems, computer fans, and low-level office conversation. It performs very well in typical office and home-office environments.
Our EncorePro and Savi series headsets feature multi-microphone adaptive noise cancellation that handles more extreme environments—think busy call centers with dozens of simultaneous conversations or manufacturing floors with machinery noise. For most corporate, education, and home-office users, the C3320’s noise cancellation exceeds expectations and rivals headsets costing significantly more.
The boom arm rotates 180 degrees, so you can position the microphone on your left or right side depending on your preference or workspace layout. The boom also flexes vertically to fine-tune mic placement relative to your mouth—we recommend positioning the mic capsule about one to two inches from the corner of your mouth for optimal pickup.
The headband itself is designed for over-the-head wear and doesn’t convert to over-the-ear or behind-the-neck styles. The single ear cushion sits on whichever ear you choose based on how you rotate the boom.
Each C3320 package includes the headset with attached 6.5-foot USB-C cable, a quick-start guide, and warranty documentation. The headset is plug-and-play, so there’s no software CD or driver download required for modern operating systems.
We don’t include a carrying case with the C3320 since it’s designed as a desktop headset rather than a travel model. If you need portability, replacement ear cushions, or other accessories, those are available separately through our online store or authorized resellers.
Absolutely. The plantronics c3320 usb-c headset is certified for Microsoft Teams and Skype for Business, and it’s fully compatible with Zoom, Google Meet, Cisco Webex, RingCentral, GoToMeeting, and virtually every other major UC platform. The inline controls map to standard call functions—answer, end, mute, volume—that work across all these applications.
When you plug the C3320 into a computer running Teams, the platform automatically recognizes it and enables features like LED status indicators and firmware updates delivered through the Teams client. For other platforms, it shows up as a standard USB audio device with full functionality.
Wipe the leatherette cushion with a soft cloth dampened with water or a mild soap solution—avoid alcohol-based cleaners that can dry out and crack the material. For daily maintenance, a dry microfiber cloth removes oils and dust effectively.
The cushion is designed to last two to three years with regular use, but we offer replacement cushion kits if you want to refresh the headset or if the leatherette shows wear. Keeping the cushion clean not only extends its life but also maintains acoustic seal quality, which directly impacts audio performance and passive noise isolation.