I bought the jabra elite 85t as a replacement for my brilliant taotronic earphones thinking the increased price would mean an increase in quality. I was wrong. After unboxing them and being amazed at the customisation options I shortly realised that I was unable to use the left earbud on its own. This is such a deal breaker as this is one of the only reasons I use wireless earbuds. Absolutely disgraceful won't be buying any jabra products again.