This product has been discontinued


The Plantronics SupraPlus? headset family brings new standards in all-day comfort and reliability to telephone professionals. Enhanced receive-side audio quality, intelligent flexible boom and stylish design provide greater headset flexibility.

The SupraPlus? Ultra-Noise Canceling H251N-UNC Headset provides excellent audio quality for traditional voice applications as well as the increasingly popular Voice over IP softphone applications. It offers a monaural design that covers only 1 ear, a ultra noise-canceling microphone and is compatible with Plantronics amplifiers and USB-to-headset adapters. Other models will be available soon!

The SupraPlus? requires an amplifier. We recommend the M22 Vista Corded Amplifier

If your phone has a headset jack (and internal amplifier) then the SupraPlus? Polaris may be suitable.

Technical Specifications

Manufacturer Plantronics
Catalog Number 1384
Type Corded
Wearing Style Over-the-Head
Max Range / Cord Length 10 ft.
Weight 2.4 oz.
Compatibility When paired with an amplifier, works with your existing single- or multi-line phone
Microphone Noise-canceling
Earpiece Foam
Color Black
Special Technologies Ultra-Noise Canceling
Warranty 2-Year Full Replacement
Handset Lifter Compatible Not Applicable
Quick Disconnect Yes
What's in the box? Headset; Spare ear pad; Instructions

Customer Reviews