Plantronics Encore H91, H91N, H101 & H101N Corded Headset Date Codes

The date code of the Encore 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 (1=January, 2=February…).  The two numbers following the dash represent the year (05=2005).  Next is the model of the headset.  An “H9” represents the Encore H91 model and “H10” represents the Encore H101 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.  Any trailing characters are used by Plantronics for coding purposes.

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