Yealink UH42 Mono UC USB-C/A is a wired, on-ear mono headset for voice communications. Its single earpiece leaves one ear free, while the inline controller provides call control with LED indicators.
The headset uses a USB-C cord with a USB-A adapter for connection. The cable runs 0.65 m from the headset to the controller, followed by a 1.5 m cable from the controller to the USB plug. A single microphone and 35 mm speaker support calls, with the speaker specified for a 20 Hz–20 kHz frequency response.
In the package: headset and Quick Start Guide.