The Plantronics SupraPlus SL 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. SupraPlus SL offers monaural or binaural versions, voice tube or noise-canceling microphones and is compatible with Plantronics amplifiers and USB-to-headset adapters. SupraPlus SL models have leatherette ear cushions and silver finish. Polaris models are for use with phone systems with built-in amplifiers. 

All-day wearing comfort and reliability
Enhanced audio for greater listening accuracy
Supports most Plantronics amplifiers and USB-to-headset adapters
Leverages the strength of the market-leading Supra headset
Designed for the most demanding environments
Single earpiece with adjustable headband 
Voice Tube
Quick Disconnect™
Specialty headsets for use with Northern Telecom's NORSTAR 512 and MERIDIAN M2216
For use with any Telephone with RJ22 Amplified Jack
Includes 2 ft. Cable