2-Mic & AI Noise Cancellation 2-Mic & AI Noise Cancellation The dual-microphone noise cancellation and acoustic shield technology can intelligently shield the noise and only pick up the speaker's voice to send it. It helps improve the call's clarity and quality and brings the ultimate calling experience. All-Day-Wearing Comfort All-Day-Wearing Comfort Based on extensive research and analysis to meet the highest ergonomic standards, the UH44 has undergone hundreds of head shape evaluations and thousands of comfort tests to ensure optimal stability and comfort for long-term wear. Additionally, the materials used in the headset guarantee its durability and robustness. Flexible and Fast Plug-and-Play Flexible and Fast Plug-and-Play As a wired headset, the UH44 is plug-and-play, allowing quick and easy use. The product is compatible with mainstream phones and PC devices on the market, enabling users to get into their work quickly. High-Quality Audio Experience High-Quality Audio Experience With a 35 mm large speaker, UH44 supports dynamic EQ to automatically switch between call and music modes. You can enjoy clear and natural sound quality in call mode and spacious and detailed sound quality in music mode.

General • Headset cable length: 0.65 m (from headset to call control unit) • USB cable length: 1.5 m (from call control unit to USB plug) • Supported operating systems: Microsoft Windows®, Apple Mac OS • Connection type: USB-C cord with USB-A adapter Audio • Microphone quantity: 2 • Microphone frequency response range: 100Hz-14kHz • Speaker size: Ø 35mm • Speaker sensitivity: 113.8±3dB 0.980V • Speaker frequency response range: 20Hz-20kHz • Speaker bandwidth:- Music mode: 20Hz-20kHz- Talk mode: 100Hz-20kHz • Hearing Protection:- Peak Block Protection (EN50332)- Australian G616 Protection (AU G616)- Daily Noise Exposure Protection Headset Control and Lights • Answer/End/Reject a call • Volume up/down • Microphone mute/unmute • Move the microphone boom arm up to mute, or down to unmute • Mono busylight Management • Yealink USB Connect (PC) • Yealink Management Cloud Service Packet Content • Headset • Carrying Bag • Quick Start Guide Packing • Product net weight: - Dual: 162 g - Mono: 127 g • Product size:- Dual: 199 mm x 178 mm x 63 mm- Mono: 153 mm x 184 mm x 63 mm • Giftbox size: 177 mm x 207 mm x 53 mm • Carton size: 550 mm x 185 mm x 220 mm • Qty/CTN: 10 PCS • N.W/CTN: - Mono: 2.42 kg- Dual: 2.79 kg • G.W/CTN: - Mono: 2.85 kg- Dual: 3.21 k