The ROTO speaker is a Bluetooth speaker with a unique, rotating spherical head.
Combined with an array of parametric transducers that emit pinpoint, hyperdirectional sound waves to a very narrow area, it allows a user to direct music or other sound directly at themselves--audible to nobody else around them.
based on existing parametric speaker technology, it's Perfect for open concept offices, dorm rooms, and other shared spaces where you don't want to shut off from the world with headphones, but don't want to bother those around you, either.