O-tus near ear speakers provide 108 dB of surround sound. O-tus speakers are interchangeable, they can be used various in helmets; bike, ski, skate as well as garden hats, beanies, hard hats and the list goes on. Unlike traditional earbuds, O-tus does not go directly inside your ears. O-tus uses directional sound technology allowing you to hear your tunes and everything going on around you.