• Supports Yealink SIP-T41S/T42S/T46S/T48S/T52S/T54S/T56A/T58A/T58V
• For T41S/T42S/T46S/T48S/T52S/T54S: upgrade to the version 82 or higherv
• For T56A/T58A/T58V: upgrade to the version 80 or higher
• USB and 3.5mm connectivity to laptop and smart device
• Simple call management via control unit
• Integrated LED indicator and warning tone
• ActiveProtection technology safeguards users from acoustic injury
• HD Voice/Wideband speaker performance and noise cancellation
• 330° bendable boom arm for easy adjustment without breaking

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