About Yealink (UHM421) UH42 Mono - with 3.5mm Jack - No Inline Control

The Yealink UH42 Mono is a lightweight, comfortable single-ear wired headset built for everyday business use. The UHM421 variant connects via a standard 3.5mm jack, making it a great pick for users who need broad device compatibility — whether that's a laptop headphone port, a desktop phone, or a mobile device. At just 116 grams and without an inline control unit, it's a clean, no-fuss headset that gets out of the way and lets you focus on the call.

Key Features

• 3.5mm Universal Connection — Plugs straight into any 3.5mm audio port, so it works across laptops, desktop phones, and mobile devices without any adapters or drivers.
• Single-Ear Mono Design — Keeps one ear free so you can stay aware of what's happening around you — handy in busy offices or open-plan environments.
• 35mm Speaker — Delivers clear, natural voice audio with a frequency response of 20Hz—20kHz for comfortable listening across calls and multimedia.
• AI Noise-Cancelling Microphone — Yealink's Acoustic Shield technology reduces background noise so your voice comes through clearly, even in a noisy workspace.
• Hearing Protection Built In — Includes Peak Block Protection and daily noise exposure safeguards to look after your hearing during long shifts on the phone.
• All-Day Comfort — Soft memory foam ear cushion and a lightweight 116g build mean you can wear it for hours without it becoming a distraction.

Why Choose This Product?

If you need a straightforward, comfortable mono headset that works with virtually any device via a 3.5mm connection, the Yealink UH42 Mono UHM421 is a solid, well-priced choice. It's easy to deploy across a team with zero configuration required. Our Telrexperts can help you work out the right headset for your setup if you're not sure this is the one.

What's in the Box

• Yealink UH42 Mono Headset (3.5mm)
• Quick Start Guide

About Yealink

Are you looking for reliable and affordable communication solutions for your business? Telrex is an authorized reseller of Yealink products, providing a wide range of phones and devices.

Yealink is a leading global provider of enterprise communication and collaboration solutions, with a wide range of products designed for all kinds of businesses. From IP phones and video conferencing systems to wireless solutions and audio conferencing products, Yealink has a product to fit every business need. At Telrex, we are committed to providing our customers with the best solutions for their business needs. Our experienced team can help you find the perfect product to meet your communication requirements. 

Choose Telrex as your trusted reseller, and get the most out of your communication technology. Contact us today to discuss your business communication needs.