The Yealink UH34 Lite Teams Certified Mono Headset TEAMS-UH34L-M is a monaural professional USB wired headset with crystal clear audio. It offers a lightweight form factor that is comfortable to wear, even for an entire workday. It’s suitable for workers who spend a lot of time wearing headsets for voice communications. Provided with Yealink USB Connect software and Yealink Device Management Platform/Cloud Service, you are easy to check the device information and upgrade the firmware of one or multiple. Works with: PC, Laptop, Yealink IP Phone How does it connect: USB CONDITION Brand New - A brand-new, unused, unopened, undamaged item in its original packaging. WARRANTY This item comes with a 24-month manufacturer's warranty. FEATURES • Plug-and-play • HD Voice/Wideband speaker performance • Noise-canceling microphone and passive noise cancellation • ActiveProtection technology safeguards users from acoustic injury • Integrated LED indicator and warning tone • 330° bendable boom arm for easy adjustment without breaking QUICK SPECIFICATIONS • Headset cable length: 1.2 m (from headset to call control unit) • USB cable length: 0.9 m (from call control unit to USB plug) • Supported operating systems: Microsoft Windows® 7/8/8.1/10, Apple Mac OS • Color: Black • Weight: UH34 Mono: 82.5 g • Storage temperature: -30 °C to +70 °C • Operating temperature: -10 °C to +50 °C • Microphone type: Uni-Directional ECM • Microphone frequency response range: 100 Hz-8 kHz • Microphone bandwidth: Wideband • Microphone sensitivity: -44.0 dB re. 1 V/Pa • Speaker size: 28mm • Speaker sensitivity: 93 dB SPL @1 kHz • Speaker frequency response range: 20 Hz-20 kHz • Speaker impedance: 32?, @1.0 kHz • Speaker input power: max 10 mW • Speaker bandwidth: Wideband • Answer/End/Reject/Hold a call • Volume up/down • Microphone mute • Redial last outgoing call WHAT'S INCLUDED • Yealink UH34 Lite Mono with foamy ear cushions • Quick Start Guide