Just received these two weeks ago and I have been running on very hot days and have been very very sweaty. Headphones continued to work. Maybe 4 runs so far. On one occasion I didn't have a pocket for my phone (like I usually do) so I used a treadmill - it was the only time the signal kept dropping. It was my left hand and the antenna was on the right. I just found out this little fact. In my pocket it was perfect. The sound is good, but not outstanding. This is a cheap set of Bluetooth headphones so I'm fine with that for now. Every other pair I've ever had I've destroyed with my sweaty head, so we'll see. Additional note - the charging port is open, so I suspect that's my fault point. I've noticed that I have to fiddle with the charging port to get the light to come on. I will say it if they attack me.
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