Sennheiser USB-ED CC 01 MS Cable Adapter for Circle and Century (Circle SC 230, SC 260 & Century SC 630, SC 660), Skype for Business Certified Headset Solution
CELLONIC® USB Data Cable Compatible for Sennheiser PXC 550-II, GSP 370, GSP 670, Adapt 660 1A Charging Cable for Headphones/Headsets 1m 480 MBit/s - USB 2.0 Fast File Transfer PVC Black