Plantronics Supra Plus SL H351, H351N, H361 & H361N Corded Headset Date Codes

The date code of the Supra Plus SL family of headsets will be located on the speaker, under the ear cushion.  If a binaural model, the code will be on the microphone side.  The first number represents the month (01=January, 02=February…).  The two numbers following the dash represent the year (05=2005).  Next is the model of the headset.  An “H35” represents the Supra Plus SL H351 model and “H36” represents the Supra Plus SL H361 model.  If an “N” is present, the headset is a noise-canceling model.  If an “R” is present, the headset has been re-manufactured or replaced by Plantronics.

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