Yealink's BH76 Bluetooth Wireless Business Headset has a stylish appearance and delivers exceptional audio quality. It has an innovative retractable microphone arm and 4 levels of active noise cancellation (ANC), as well as Yealink's Acoustic Shield Technology. It allows users to transform any place into an office. Business with a Stylish Appearance The BH76 Bluetooth Wireless Headset series is equipped with Yealink’s uniquely designed retractable hidden microphone arm with a magnetic slide. You can easily pull out the microphone boom arm to obtain professional audio quality and hide the microphone boom arm to obtain a stylish appearance. It allows users to enjoy music more simply and easily adapt to various outdoor activities. Multiple Microphones - Acoustic Shield Technology With the Yealink Acoustic Shield Technology, the five Microphones built into the BH76 block the background noise automatically but ensure that the participant voice can be heard clearly, which greatly boosts communication efficiency. Ultimate Music and Calling Experience Designed for music and calls, BH76 supports a dynamic EQ that can automatically switch between call mode and music mode. With Qualcomm aptX digital audio algorithm, BH76 can bring users a CD-level lossless audio quality experience. The BH76 supports 4 levels of active noise cancellation (ANC) that can bring an excellent noise reduction effect for users in any noise environment. The passive noise reduction performance brought by the new beveled ear cushion design and oval memory foam of the BH76 can provide a great listening experience for users. Multi-functional Wireless Charging Its long battery life offers up to 40 hours, saving users from searching for a charger. The BH76 supports USB and wireless charging. The optional Qi charging stand for the BH76 provides easy charging while keeping the device on the desk. This charger works for any mobile that supports Qi and personal devices such as TWS.