The Yealink YHC20UC-USB-C Controller is a compact inline module designed to enhance the connectivity and functionality of Yealink UH36 and UH34 SE headsets. It converts the traditional 3.5mm headset jack to a modern USB-C connection, making the headset compatible with a broad range of contemporary USB-C devices. This controller includes dedicated Microsoft Teams call control buttons, allowing users to mute, adjust volume, and answer or end calls directly from the inline remote. It is ideal for professional communication environments using Microsoft Teams or Unified Communications platforms. The ergonomic inline design ensures easy access to controls without interrupting workflow. Compatible primarily with Yealink UH34 SE and UH36 UC/Teams headsets, this controller is a practical upgrade, offering seamless USB-C integration and intuitive call management in one sleek accessory.