Used 6 months at the gym,(bike & bench) worked great, broke, replaced.Buy it NEW (about $45), get warranty & receipt. It breaks, Logitech will replace it with the NEW Freepulse ($98) but you didn't hear that from me. Now, the ALMOST is that it's not quite as loud as I'd like so I bought a $15 booster on ebay and bumped it up the rest of the way. Plus, 1 charge will easily get you through 3 workouts. This head bands is made of plastic but the new Freepulse headband is made of steel and it's lighter and stronger. The headphone freedom is priceless! Give all your corded headphones a kick in the pants and and roll wireless, baby!I love the Logitech headphones!!