Yealink BH72 is a Acoustic Shield Technology Headset that ensures distraction-free audio quality in daily calling with a virtual shield created by multiple microphones, to ensure you've been heard clearly. BH72 has Ole Wolff diaphragm, an industry-leading professional acoustic component, provides a wider frequency response and higher sensitivity of music, enabling everyone to enjoy the full sound of originalities and fineness. Noise-cancellation microphones, placed in retractable Magic Boom, together with beamforming, gets your message across completely even in noisy environments with clear and crisp voice transferred. Universally compatible to work with common calling applications across almost all platforms and operating systems, Yealink Headsets are ready for your business and professional communication from the moment you start with. Visible busylight in ultra-wide-angle automatically activated by coming calls or manually by pressing two volume buttons simultaneously, is engineered to protect your working state and concentration from any interruption when you immerse in a call, meeting, hidden boom arm that still guarantees exceptional professional sounding calls, even when tucked away. QI wireless charging, and bundle with special tailored UC Powerstation for daily powering, BH72 supports up to 40 hours of battery efficiency, covering one week's working.