Yealink YHS33 USB Headset - Details and Descriptions.

Yealink YHS33-USB is a professional headset with the over-the-head style that eliminates background noise and helps you get in your concentration zone and focus. Coupled with wideband audio technology and HD voice, the YHS33-USB delivers richer and clearer conversations, as well as reduces listening fatigue. Simple plug-and play setup permits you to merely use the USB port to the
USB-supported Yealink IP phones plug it into the USB port or 3.5mm jack to your laptop, or use the 3.5mm jack straight into your smart device. Get easy access at your fingertips via the intuitive control unit to the frequently used functions, such as accept incoming calls, adjust volume and mute the  microphone.
Yealink YHS33- USB stands its unique position in the market with the combination of exceptional comfort, durable lifecycle, premium quality, and brilliant sound.
 
Key Features and Benefits:
• USB and 3.5mm connectivity to laptop and smart device
• Simple call management via control unit
• Integrated LED indicator and warning tone
• Active Protection technology safeguards users from acoustic injury
• HD Voice/Wideband speaker performance and noise cancellation
• 330° bendable boom arm for easy adjustment without breaking

Please see https://www.simplifi.io/docs/contact/ for additional details and downloadable documentation