Plantronics SupraPlus HW251N Wired Headset
Our SupraPlus HW251N headset combines professional-grade audio performance with the lightweight comfort contact center professionals need for full shifts. The monaural over-the-head design delivers crystal-clear conversations through a single earpiece, leaving your other ear free to maintain awareness of your surroundings.
Every SupraPlus headset is built with the same voice tube technology that made the original SupraPlus the industry standard. The noise-canceling microphone filters out background office chatter and keyboard noise, so your voice comes through clearly on every call. We engineered the HW251N for professionals who spend hours on the phone — customer service teams, IT help desks, and sales floors where call quality directly impacts business outcomes.
- Ultra-lightweight monaural design weighing only 21 grams for all-day comfort
- Noise-canceling voice tube microphone reduces background noise by up to 75%
- Wideband audio support for superior voice clarity on compatible systems
- Quick Disconnect feature lets you walk away from your desk without removing headset
- Durable leatherette ear cushion with sound chamber for consistent audio quality
Voice Tube Noise-Canceling Technology
The HW251N uses Plantronics’ proprietary voice tube microphone — the same proven acoustic design trusted in call centers worldwide. Unlike standard boom mics, the voice tube positions the pickup element directly in your voice path while physically isolating it from ambient noise sources. This means keyboard clicks, nearby conversations, and HVAC noise stay out of your calls without digital processing lag.
The microphone boom adjusts through a full 300-degree arc and holds position exactly where you set it. We built the boom core from flexible yet memory-retaining material that survives thousands of adjustments without going limp. Position it at the corner of your mouth for optimal pickup, and it stays there shift after shift.
Comfort Engineering for Extended Wear
At just 21 grams, the SupraPlus HW251N is one of the lightest professional headsets we manufacture. The over-the-head wearing style distributes that minimal weight across your entire head rather than putting pressure on a single ear. We shaped the headband with a gentle curve that matches natural head contours, and reinforced it with spring steel that maintains consistent tension without creating pressure points.
The leatherette ear cushion creates an acoustic seal without clamping force. Inside the cushion sits a precisely tuned sound chamber that enhances voice frequencies while dampening background noise. Teams working in open office environments often appreciate the single-ear configuration, since it allows you to stay engaged in phone conversations while remaining aware of colleagues who need your attention.
Quick Disconnect and System Compatibility
Every SupraPlus headset ships with our Quick Disconnect connector built into the cable. This small interface block clips to your belt or desk edge and lets you unplug from your phone system in a single motion when you need to step away. Walk to the printer, grab coffee, or head to a meeting without removing your headset — just disconnect the QD cable and go.
The HW251N requires a compatible Plantronics amplifier or direct-connect cable to interface with your phone system. For digital phone systems supporting wideband audio, the headset delivers frequency response up to 6800 Hz instead of the 3400 Hz ceiling on traditional telephony. That expanded range makes voices sound more natural and reduces listening fatigue during long calls. Compatibility extends across most desk phone systems, and our engineering team specs each amplifier model to match specific phone brands and connection types.
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Common Questions About the SupraPlus HW251N
The HW251N requires a compatible Plantronics amplifier or direct-connect cable to interface with your desk phone system. The headset uses a Quick Disconnect connector, so you’ll need an amplifier like the M22, MX10, or a model-specific direct-connect cable based on your phone brand. Contact our support team with your phone’s make and model number, and we’ll identify the right connectivity solution for your setup.
The HW251N is a monaural headset with a single earpiece, while the HW261N is the binaural version with dual earpieces. Both use the same noise-canceling voice tube microphone and share identical audio quality. Choose monaural if you need to stay aware of your surroundings, or binaural if you work in a noisy environment and need maximum focus on phone conversations.
The leatherette ear cushion detaches without tools — simply grip the cushion and pull it straight off the speaker housing. Align the replacement cushion’s mounting slots with the speaker posts and press firmly until it clicks into place. Replacement cushions are available through our accessories catalog and typically need replacing every 12 to 18 months with daily use.
Yes, but you’ll need a USB adapter like the Plantronics DA80 or DA90 to connect the headset to your computer. The headset itself terminates in a Quick Disconnect connector, which then plugs into the USB adapter. This setup works with all major softphone platforms including Microsoft Teams, Zoom, Cisco Jabber, and standard computer audio applications.
The microphone boom rotates through 300 degrees and features a flexible core that holds position exactly where you set it. The boom maintains its shape through thousands of adjustments without becoming loose or floppy. Position it at the corner of your mouth for optimal voice pickup, and it will stay there throughout your shift.
Wideband audio extends frequency response from the traditional telephony range of 300-3400 Hz up to 150-6800 Hz, making voices sound more natural and reducing listening fatigue. The HW251N supports wideband audio when connected to compatible digital phone systems or VoIP platforms. If your phone system supports wideband, you’ll notice the difference immediately in voice clarity and naturalness.
We back the HW251N with a two-year limited warranty covering defects in materials and workmanship. The warranty begins from your purchase date and includes replacement of defective units. Normal wear items like ear cushions are excluded from warranty coverage but are available as affordable replacement parts. Our support team handles warranty claims directly and responds to technical questions throughout the product’s life.