The ADD50 series are stylish yet robust headsets which provide high quality conversation and the ultimate listening experience. The ADD55 is the binaural model of the series and comes complete with a number of highly useful so that users may make the most of their phone calls.The ADD-50 series is built with an extremely stylish, yet durable design. The headsets come with high-quality leatherette earpads which ensure all day comfort, but the headsets are also sonically welded, which ensures maximum robustness at stress points. The headsets also come with high quality noise cancelling technology, which ensures clear voice conversations in even the loudest of office environments. The 50 series provides Advanced Acoustic Shock Protection for ultimate sound safety against unwanted, unexpected loud noises, as well as a flexible T-bar foam design which aims to reduce user fatigue.