Sennheiser SC 165 USB -C is a double-sided headset with 3.5 mm jack and detachable USB-C cable, optimized for UC professionals working on both PC and mobile devices. Sleek minimalistic design and great sound for calls and multimedia. A natural listening experience with Sennheiser Voice Clarity and noise-cancelling microphone optimize speech intelligibility. Large leatherette ear pads for comfort and passive noise reduction. Includes an in-line control unit.