Never will I ever buy a Chinese phone again. I've said before that eons ago, my wife and I bought a Chinese domestic phone each in Shanghai. At that time, Android does not even exist yet but it was using their modified NOKIA Symbian OS with touchscreen.
I later realized when I linked it to my PC that there are random recordings of your conversations and there is no way to deactivate this function. I strongly believe that they implanted this bug to spy on their own people since it is a domestic model and once you are connected to the Internet, your recorded voice files will be sent to their servers in China. WTF to the Commies?
