Yealink BH72 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 can easily hide the microphone boom arm to obtain a stylish appearance. It allows you to enjoy music more simply and can easily adapt to various outdoor activities. With Yealink Acoustic Shield Technology, the two Microphones built into the BH72 block the background noise automatically but ensure the participant's voice is heard clearly, greatly boosting communication efficiency. Its long battery life offers up to 35 hours of talking time, saving users from searching for a charger. The optional Qi charging stand for the BH72 provides easy charging whilst keeping the device on the desk. This same charger works for any device that supports Qi - like a mobile. Designed for music and calls, BH72 supports dynamic EQ to automatically switch between call mode and music mode. The new angled ear cushion design and oval memory foam isolate the ambient noise, bringing excellent passive noise reduction and creating the best listening experience.