SHG S 250 Monaural DECT Wireless Headset with Passive Noise Canceling Mic 

 Product Features and Benefits: Lightweight to reduce ear fatigue.   Connects to all major desk phones with RJ9 cable.  Connects to all major computer softphones with USB-A cables.  Fully articulating microphone boom.  Plug and play (USB) - drive included, no downloads needed. Superb sound quality receiver and microphone. Passive noise canceling microphone.  Reliability rate over 99.96%.  Monaural (one ear) wearing style.  Leatherette cushion type.  RJ9 and USB-A connectivity.  Compatible with desk phones and computer soft phone.    Two-year manufacturer’s warranty.