Your ears are a ticking time bomb.
As this Harvard article attests to, once they start ringing or you experience sudden hearing loss, you have at most two weeks to take action and remedy the problem, otherwise it becomes permanent<...
. Highly accessible in an emergency situation
Their small size allows them to be attached to your key ring, purse, backpack, or even your clothing, ensuring that they are always within reach when needed. Plus, they are designed to be highly intuitive, with simple control and easy-to-rem...