-----
Mid-January 2014, I feel obliged to update the review and a significant devaluation.
The processing resp. the material of the headset allow much to be desired, which is why I now forgive only two stars. The first headset was after one and a half years broken (purchase in August 2011), it was replaced by Plantronics. Meanwhile, this headset is also defective. Both defects on the cable RCA plug was broken. This is not a recommendation for a headset that I regularly and often need.