Surprisingly great glue. Totally different and much, much better than a regular one-dollar Crazy Glue. Repaired three different sets of headphones and all are holding strong. To my surprise, after using it twice, then keeping it closed for three weeks and opening it to use again, there were no signs of any hardening, the glue was flowing and working as good as new. Bonds very quickly, so you've got to be fast while working with it.