Amazon.com: EPOS | Sennheiser Adapt 160 USB II (1000915) - Wired, Double-Sided, UC Optimized Headset with USB Connectivity - Superior Stereo Sound - Enhanced Comfort - Call Control - Black : Electronics
Sennheiser SC 160 USB (508315) - Double-Sided (Binaural) Headset for Business Professionals | with HD Stereo Sound, Noise Canceling Microphone, & USB Connector (Black), Black : Electronics