Sennheiser Electronic Corp.","Can you remember the last time you had a proper workout without any disturbances from your headphones falling out or giving up? The Sennheiser\/adidas PMX 680 sports earphones will change that on the first listen.","Can you remember the last time you had a proper workout without any disturbances from your headphones falling out or giving up? The new Sennheiser\/adidas PMX 680 sports earphones will change that on the first listen. These sweat-proof, neckband 'phones deliver outstanding, high-energy stereo sound without the need for readjustment or the trash can.The neckband vertical transducer system provides a comfortable, secure fit that won't fall out during your workout. Further, the PMX 680 has a universal fit for any size or shaped head. This will ensure long-term comfort without sacrificing stability. A convenient volume adjuster keeps you in control of your tunes while a detachable extension cable lets you position your MP3 player where YOU want it.The DuPont™ Kevlar® reinforced cabling guarantees durability and flexibility where other sport headphones can't- even in cold temperatures. A sweat-proof, water-resistant construction lets you go your hardest during any off-season.iPod and iPhone are registered brands of Apple Computer, inc. in the USA and other countries.