alasaarela , via OnePlus 7T Pro , Jan 15, 2020 : I have the OnePlus 7T Pro phone, and decided to buy OnePlus Bullets 2 Wireless headset for calls and audio on the go just before Christmas. Now, only a few weeks later, the microphone doesn't work. [e]1f449[/e] If I call someone over Bluetooth, I can hear them, but they can't hear me. The same is true when I answer calls. [e]1f449[/e] If I switch to the phone, the call works fine. I have tested this with many calls, so this is not a network issue. [e]1f449[/e] The recorder app uses the phone mic, while the playback sound comes to the headset. I tested this multiple times. Are my settings off somewhere, or is my headset mic not working? The headset itself hasn't suffered any damage, so I doubt the mic would have broken - this is something else.