Description

Yealink UHD-422,
UH42 Dual with 3.5 mm jack, no inline control

UHM‑421B USB Headset Adapter Module, a variant of the UHM‑421 accessory. It is designed to provide USB connectivity and call control integration for Yealink headsets when used with PCs, laptops, or compatible Yealink IP phones.

Key Details
– Category: Headset accessory / USB adapter.
– Function: Acts as a USB interface module enabling Yealink headsets to connect seamlessly to UC platforms (Microsoft Teams, Zoom, etc.) and Yealink desk phones.
– Features:
– Plug‑and‑play USB connection.
– Call control buttons (answer, mute, volume).
– Optimized for Yealink UH series and WH series wireless headsets.
– Use Case: Ideal for enterprise deployments where headsets need to switch between PC softphones and desk phones without compatibility issues.