The Yealink BH72 series of wireless Bluetooth headsets features the specially designed Yealink designed collapsible, concealed microphone boom with magnet slide. The microphone boom is easy to unfold and high-quality audio is recorded. For a stylish look hide the microphone boom simply by folding it. This makes it much easier to listen to your music, as well as use it during various outdoor activities Thanks to Yealink Acoustic Shield Technology, background noise is automatically blocked through the two microphones built into the BH72, while the voice of the caller is clearly conveyed. This makes communication a lot more efficient With its support for dynamic EQ that automatically switches between call mode and music mode, the BH72 is specially designed for listening to music and conducting conversations. 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 Because the battery lasts so long, your calls can last up to 35 hours without having to plug in all haste to look for a charger. In addition, there is a wireless charging function and a optional wireless charging case that allows you to charge the headset and mobile phones or other devices that support standard wireless charging with Qi. Busy lights are built into both sides of the headset. These lights automatically indicate red light when you are on a call or in a meeting. Disturbing interruptions of outside will decrease so that you can better focus on the conversation and office work more efficiently.