BURLINGTON, Mass. & LAS VEGAS--(BUSINESS WIRE)--ONvocal, an entrepreneurial company founded by audio and mobile tech industry leaders and dedicated to transforming the art of listening™, yesterday launched Mix360™, a Bluetooth hearable device and accompanying app that allows users to create their own customized sound mix. Launched at the prestigious CES Unveiled event of CEA’s International Consumer Electronics Show, Mix360 is the only “hearable” device on the market that allows users to mix th