Product Preview Video – Plantronics HW251N Headset – Most popular corded business headset. The Plantronics HW251N SupraPlus is a monaural, noise canceling headset that has become the most popular headset in the Plantronics commercial grade line because of its great sound quality, durability and all-day wearing comfort. For more information, please click Plantronics HW251N SupraPlus Corded Headset Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website