My first pair were LG tones that I got from sprint. They didn't handle sweat very well. Lasted a month before they crapped out on me.
Ive had a pair of Jabra Sports for about 3 months. They're working all right for me. I sweat like a b@stard when working out and the haven't fukked up yet. You can get em for about $60-$70 bucks.
[ame=http://www.amazon.com/Jabra-SPORT-Bluetooth-Stereo-Headset/dp/B005FVNHBI/ref=sr_1_1?s=wireless&ie=UTF8&qid=1366255706&sr=1-1&keywords=jabra+sport]Amazon.com: Jabra SPORT Bluetooth Stereo Headset - Black/Yellow: Cell Phones & Accessories[/ame]