Plantronics SupraPlus HW251N Wired Headset
The Plantronics HW251N is our professional-grade monaural headset built for contact center and office environments where clarity and all-day comfort are non-negotiable. The SupraPlus platform pairs a noise-canceling voice tube microphone with a single over-the-ear speaker, isolating your voice from background noise while keeping one ear free to hear colleagues and your surroundings.
We engineered this headset with ultra-lightweight materials—just 22 grams—so you can wear it through eight-hour shifts without pressure points. The flexible microphone boom adjusts to position the voice tube exactly where your voice projects clearest, and the quick-disconnect cable lets you step away from your desk without removing the headset. Whether you’re handling back-to-back customer calls or collaborating across departments, the HW251N delivers the audio performance and durability our SupraPlus line is known for.
Key specifications
Voice Tube Microphone Technology
The HW251N uses a voice tube microphone instead of a traditional boom-mounted capsule. The tube channels your voice directly into the microphone element while physically blocking ambient noise from the sides and rear. This passive noise-canceling design is more reliable than electronic filtering in high-volume call center environments because it has no batteries to die and no circuitry to fail.
You’ll notice the difference immediately when coworkers are talking nearby or keyboards are clacking in the background. The voice tube picks up your words clearly while dropping everything else by 15–20 decibels. Customers on the other end hear only your voice, not the chaos of a busy floor. We’ve used this same microphone design across the SupraPlus family because it works—simple physics, proven over millions of deployed headsets.
Monaural Design: When You Need One Ear Open
We built the Plantronics HW251N with a single earpiece because many professionals need situational awareness while on calls. Receptionists, security personnel, and team leads often need to hear what’s happening around them—a colleague asking a question, a supervisor giving hand signals, or an alert tone from another system.
The monaural configuration routes call audio to your right ear while leaving your left ear completely open. There’s no padding, no seal, and no audio leakage to distract you. You process customer conversations in one channel and your physical environment in the other, without the cognitive fatigue that comes from constantly lifting a binaural headset to hear someone nearby. If your role requires you to toggle between phone work and in-person collaboration throughout the day, this asymmetric design is the most efficient solution we offer.
Lightweight Comfort for Extended Shifts
All-Day Wearability
At 22 grams, the HW251N is one of the lightest professional headsets we manufacture. The T-bar headband distributes weight evenly across the top of your head, and the soft foam ear cushion rests gently against your ear without creating a pressure seal. After the first ten minutes, most users stop noticing they’re wearing it.
We designed the headband to flex and adjust without tools or clips. Slide it up or down to find your ideal fit, and the spring-loaded mechanism holds position through an entire shift. The over-the-ear hook stabilizes the speaker without pinching, so you can lean forward, turn your head, or move through your workspace without the headset slipping. If you’ve experienced headaches or ear soreness from heavier binaural models, the HW251N solves that problem by keeping contact points minimal and weight nearly imperceptible.
Other Professional Wired Headsets
Rated 4.8 by verified buyers
Common Questions About the HW251N
The HW251N features an enhanced noise-canceling voice tube microphone that provides superior background noise suppression compared to the standard HW251. Both headsets share the same lightweight SupraPlus frame and monaural over-the-ear design, but the HW251N is the better choice for high-noise environments like busy call centers or open offices.
If your workspace is relatively quiet, the standard HW251 delivers excellent clarity at a lower price point. If you’re surrounded by conversations, keyboards, or HVAC noise, the enhanced noise canceling in the Plantronics HW251N makes a measurable difference in call quality.
Yes, but you’ll need a Plantronics amplifier or bottom cable with the appropriate connector. The HW251N terminates in a quick-disconnect plug, which is designed to connect to Plantronics amplifiers like the DA70 USB adapter or the M22 analog amplifier.
For Zoom, Teams, or other softphone applications, we recommend the DA70—it plugs into any USB port and shows up as a standard audio device with inline volume and mute controls. The setup takes about 30 seconds and works with Windows, Mac, and most Linux distributions.
Wipe the ear cushion and headband with a soft cloth dampened with mild soap and water at the end of each day. Avoid spraying liquid directly onto the headset. The voice tube opening can accumulate dust over time—gently clear it with a dry cotton swab once a week.
The foam ear cushion is replaceable and typically lasts 12–18 months with daily use. You can order replacement cushion packs from us—they snap on in seconds without tools. The microphone boom and cable are both sealed components that require no maintenance beyond occasional wiping.
Yes. The Plantronics HW251N works with Cisco phones when paired with the appropriate Plantronics bottom cable—either a direct-connect cable that plugs into your phone’s headset port or an amplifier like the M22 that connects via the handset port.
Most modern Cisco models (79xx and 89xx series) support headsets through the dedicated headset jack. Check your phone’s manual or contact us with your model number and we’ll confirm the correct cable. The quick-disconnect design means you can swap cables if you change phones later without buying a new headset.
The HW251N does not carry a specific hearing-aid compatibility rating because it’s a professional telephony headset rather than a consumer device tested under FCC HAC standards. That said, many users with hearing aids successfully use SupraPlus headsets by positioning the speaker slightly away from the hearing aid microphone to avoid feedback.
If you’re concerned about compatibility, we recommend testing fit and placement before committing to a large order. Some users find that our binaural models or neckband styles work better with certain hearing aid configurations. Contact our support team and we can walk through options based on your specific hearing aid model.
The HW251N headset cable from the earpiece to the quick-disconnect plug is approximately 12 inches. This short cable connects to a longer bottom cable or amplifier cord that reaches your phone or computer.
Typical bottom cables range from 6 to 10 feet depending on the model. If you need extra reach—for example, if your phone sits far from your desk position—we offer coiled cords that extend up to 12 feet when stretched. The modular quick-disconnect system lets you swap cord lengths without replacing the entire headset.
Each HW251N package includes the monaural headset with attached quick-disconnect cable and one foam ear cushion installed on the speaker. You’ll need to purchase a compatible bottom cable or amplifier separately based on your phone or computer setup.
We also include a quick-start guide and warranty card. Replacement ear cushions, windscreens, and clothing clips are sold separately as accessory kits. If you’re ordering for a call center deployment, ask about our bulk accessory packs that include spare cushions and clips at volume pricing.