I use Koss Portapros. Great in the gym and when I go for a run. They offer great sound quality and the are very affordable. I believe Costco has them online, if not the jungle site will have em
I use JaybirdI have a set of Jaybird Bluebud X bluetooth buds that I use in the gym. I leave my phone with my gym bag and have no trouble with bluetooth range up to forty feet or so.