The Yealink UH36, available in monaural (UH36 Mono) and binaural (UH36 Dual), is a professional USB wired headset to facilitate the conversations in ways that your concentration zone and focus is easily got in and the listening fatigue is reduced as well. Provided with Yealink USB Connect software and Yealink Device Management Platform/Cloud Service, you are easy to check the device information and upgrade the firmware of one or multiple UH36 headsets.