Its not working with any of my devices. The blue led is blinking, but no device can't be found.
It has a little problem with Xiaomi Mi 9, you can skip or repeat music, but Volume up and down does not work and if I press these, they also skip or repeat songs. But that's not big problem. Besides - connection is fast and stable. Big plus for convex buttons, so you don't have to look at it to know what you want to press.