Main Features
> Plug and Play
*USB Connectivity to Yealink IP Phones including SIP-T41S/T42S/T46S/T48S/T42U/T43U/T46U/T48U/T53/T53W/T54W/T57W/T58A/VP59 (For T41S/T42S/T46S/T48S should be upgraded to the version 82 or higher)
*USB and 3.5mm connectivity to PC and smart device
> 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

General
> Headset Cable Length: 1.2m; (from headset to 3.5 mm jack)
> USB cable length: 0.9 m (from call control unit to USB plug)
> Supported operating systems: Microsoft Windows®, Apple Mac OS
> Color: Black and Silver
> Weight: UH36 Mono: 120 g / UH36 Dual: 155 g
> Operating temperature: -10 °C to +50 °C

Microphone
> Microphone frequency response range: 100 Hz-8 kHz
> Microphone bandwidth: Wideband
> Microphone Sensitivity: -44.0 dB re. 1V/Pa

Speaker
> Frequency response range: 20Hz-20kHz
> Speaker bandwidth: Wideband
> Speaker Sensitivity: 93 dB SPL @ 1 kHz, 60 mV
> Speaker Impedance: 32+/-4.8Ω, @ 1.0 kHz
> Speaker input power: normal: 5mW; Max: 10mW

Easy Call Management
> Answer/End/Reject a call
> Volume up/down
> Microphone mute
> Redial last outgoing call