Device Type: USB Wired Headset (Monaural/Single Ear) Model: Yealink UH36 Mono UC Connection Type: USB-A / USB-C / 3.5mm Jack Wearing Style: Monaural (Mono), Over-the-head Weight: 120 g Speaker Frequency Response: 20 Hz - 20 kHz Speaker Impedance: 32 ± 4.8 Ω @ 1.0 kHz Speaker Sensitivity: 93 dB SPL @ 1 kHz, 60 mV Max Input Power: Normal 5 mW, Max 10 mW Microphone Type: Noise-Canceling Microphone Microphone Frequency Response: 100 Hz - 8 kHz (Note: Some Yealink datasheets state up to 10 kHz) Microphone Sensitivity: -44.0 dB re. 1 V/Pa Cable Length: Headset cable 1.2 m (to 3.5mm jack); USB cable 0.9 m (from control unit to USB plug) Earpad Material: Soft Leather Certification: UC Certified (Optimized for Unified Communication platforms) Key Features: Plug-and-play, Wideband HD Voice, Passive noise cancellation, ActiveProtection technology (hearing protection), Integrated LED indicator and warning tone, 330° bendable boom arm, Deep integration with Yealink IP phones (volume sync, multiple call control), Yealink USB Connect software support Supported Operating Systems: Microsoft Windows, Apple Mac OS Operating Temperature: -10 °C to +50 °C