>Plug-and-play, USB connectivity to Yealink IP phones, includingT41S/T42S/T46S/T48S/T42U/T43U/T46U/T48U/T53/T53W/T54W/T57W/T58A/V P59 (T41S/T42S/T46S/T48S should be upgraded to version 82 or higher) >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: 1.2 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 / UH34 Dual: 118 g >Storage temperature: -30 °C to +70 °C >Operating temperature: -10 °C to +50 °C