Plantronics H251N SupraPlus Noise-Canceling Headset with RJ9 Adapter

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The SupraPlus Headset with noise-canceling microphone offers new standards in all-day comfort and reliability to telephone headset users. Enhanced receive-site audio quality, intelligent flexible boom and a stylish design provide greater headset flexibility. The SupraPlus is compatible with Plantronics amplifiers and USB-to-headset adapters.

With the RJ9 Adapter Cord, you can use the headset with compatible Plantronics amplifiers or phones with compatible headset port. The adapter cord allows you to easily retrofit any H-series headset with quick disconnect feature.


  • All-day wearing comfort and reliability
  • Noise-canceling microphone reduces background noise
  • Enhanced audio for greater listening accuracy
  • Clothing clip
  • Supports most Plantronics amplifiers and USB-to-headset adapters