This is our 4th pair. The budget ones with mic and mute button. One ear piece dies. 3/4 for us. Cant find the receipt for this one, but puts me off PBTech in general.
Do yourself a favour and import yourself of Aliexpress. I can post a link to really well reviewed headphone for about the same price we pay for these Xiaomi Mi headphones.
Really annoyed, I thought the last 2 which they argued over replacing was just bad luck. Ive not got the receipt for these 4 week old ones, they are just rubbish.