SC 135 USB-C Mono Wired binaural USB-C headset. Skype for Business certified and UC optimized. by EPOS SKU: 508355 Please log in to see price or purchase this item Quantity discounts available QuantityPrice DescriptionDescriptionSC 135 USB-C Mono Wired binaural USB-C headset. Skype for Business certified and UC optimized.