Noise canceling Microphone: The wireless phone headset is designed noise canceling dual mic with Acoustic Shield Technology, which can keep background noise out of your call with noise; MS Teams settings allow you to change the noise reduction filter to high, reducing background noise in the office and making calls clearer. Comfortable & 525 ft Roaming Range: The weight is only 127g is half of the other stereo headsets, adjustment headband, and soft ear cushion, bringing a comfortable working experience.With roaming range of up to 525 ft, thru brick and metal and keep the call going. Crystal Speakerphone:The office wireless headset with a full-duplex speakerphone perfect work from home .if you get tired of wearing the headset, just swap it to the speakerphone and hang the headset up to charge. The audio quality out to the speakerphone is pretty good for speech or music. 3 Ways Connect: The Headset Base connect to PC, desk VoIP phones via included USB cable, and smartphones via Bluetooth. transfer both work calls and personal calls to the wireless headset workstation.Compatible with Yealink Desk Phones: USB Phone: T4XS/T4XU/T53/T5XW/T58A/VP59; Skype for Business Phone: T48S/T56A/T55A/T58A; Teams Phone: MP54/MP56/MP58.Poly desk phones VVX 411, VVX 401/501, VVX 250/350/450; SNOM desk phones D765 D385 D735. Teams Certified: The Yealink WH66 wireless headset is certified for teams. plug & plug, multiple options for your Teams work call control, you can easily control muting and answering calls, on your computer, on the headset bases touch screen, and on the headset itself.