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I have tried Sony and Sennheiser headphones. They were both defective. Buttons didn't work and the battery failed to charge. I had to return both of them. Now I'm trying the JBL. The build quality looks great so far, everything is working. But there are 2 problems. The sound is not clear. They cost $200, but sound like cheap $50 Chinese headphones. Also, the app doesn't work, unless you allow the app to track your position.