Plantronics cs520a binaural dect cordless headset is setting a new standard for wireless desk phone communications the new convertible headsets ndash the lightest dect headsets on the market ndash feature streamlined design improved performance and the same great reliability they offer hands free productivity up to 120 metre away from your desk and great collaboration options pair your headset with any base by simply docking it or add up to three additional headset wearers into