The Yealink YHC20T USB-C in linecall control allows you to upgrade existing Yealink USB headsets (UH34-SE orUH36) from USB-A connectivity to USB-C connectivity, expanding yourconnectivity options for Smartphones and new laptops. Features: USB-C connection3.5mm connectionIn line call/volume controlsMicrosoft Teams certified Benefits: Replacement call control forUH34-SE and UH36 headsetsConnects to a PC via USB-CConnect to Yealink headsets viathe 3.5mm headset jack