Otus mini speakers look like earbuds but deliver stereo sound to you without being in your ear to block the sounds around you. Just like listening to the stereo in your room, except on your bike or board, on the trail or at work. Everything attaches to your helmet, hard hat or sweat band so you are tangle free, hassle free and ready to "Hear What you've been Missin'!" Patent Pending. In many states it is illegal to operate a vehicle (yes that includes bikes and skateboards) with earbuds in your ear - more states are creating legislation every year. It is dangerous, however, in all 50 states and Canada. O-tus IS the solution! With O-tus 15 watt near-ear speakers, you can hear background sounds (bikes, cars, emergency vehicles, and your friend's whining ) and have your own personal surround sound stereo. All without long chords to tangle and untangle.