Everyone else uses the pull-up bar at different heights. Sound is decent. Oh well will be buying elsewhere. Ya tengo mis dudas de si son originales. If you are having a hard time seeing something, twist the stick while in the ear. I give 4 star After hiring a PROFESSIONAL for $200 to set it up for us, we discovered several major issues as follows:1. I forget I have them in all the time, and thats a good thing. I did not sweat as must as my last neoprene vest which was snug. They are now my favorites and I want other colors!