Anonymous5 years ago+110I have been using the JBL daily for over a month now while jogging or cycling, no problem at all. I have now also started using them in my free time.... Are they serious that you can't use the left one separately???Show in original language (German)Topas5 years ago+110That was also the problem with me. According to JBL, the right InEar is the master. The left one alone does not work.Show in original language (German)Comment1 commentTopas4 years ago000I got the Urbanista London for my partner - parts for 99. Super alternativeShow in original language (German)Comment