Plantronics SupraPlus HW251, HW251N, HW261 & HW261N 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 … Continued