Straight out of the package it paired with my phone with no issues. One pair was broken upon arrival with sound only in one ear. Now its a barren desert devoid of updates. These are our second purchase of the same sandals. I wore them all night and danced all night and my feet were fine! I’ve only had these headphones for a couple days and I am so glad I invested money in these! It is also "clean and neat" looking. I have bought two sets of these pajamas now. One thing is I didn’t see it was 6ft which is a little too long for me, but regardless I like it. Recommended.