I have a few headsets and many use the power button in many ways to pair and turn off by HOLDING DOWN THE POWER BUTTON UNTIL IT TURNS OFF.
If the seller and maker can't clear this up then return it as defective.
Today I just got a new headphone from one of my friends and after I charge the wireless headphone and try to connect to it, it started to blink blue light lights non stop. And now I don't know what I need to do. Please help me. Oh and I can't turn it off too.