Lisnr wants to make airline and concert tickets a thing of the past using sound waves

Imagine a world where your entry ticket to an event, or boarding pass for a flight, or your form of payment for a good or service is invisible data transferred by way of sound waves. That world is already here, and it's exactly what Rodney Williams is doing at the company he co-founded, Lisnr, a Cincinnati-based technology start-up. Read More