I spent a couple of fruitless hours this morning trying to pair my new Klipsh T5s with my iPhone X. I was able to pair them yesterday (after some fiddling) but today no luck. I got the left one to pair at one point, then the right one, but as soon as one earbud paired, then the other one shut down. So I got audio in one ear even though the phone says both are connected. I tried every suggestion I found in this thread - three presses, five presses, etc. I've reset both the earbuds and the phone, still nothing. At this point I'm ready to return them and move on, but I have this irrational expectation that the Magic Solution will turn up. If anyone has it, please let me know.
As others have pointed out, the manual is no help at all.