Don't let sweat or moisture corrode your headphones--go waterproof. Powered by H2O Audio's patented waterproof technology, the Flex All-Sport Waterproof headphones are built to withstand heavy perspiration and submersion up to 3ft/1m underwater for up to 30 minutes, making them perfect for atheletes in all sports. Three different sizes of Elastomer ear plugs make it easy to find the stay-put fit that's best for you. Better fit also means better noise isolation for quality sound in the water or out. Best of all, they simply rinse clean for easy maintenance.