LISNR is a Cincinnati-based firm developing an ultra-high frequency audio-tone communication protocol for a range of proximity-based applications including a range of consumer/audience messaging applications, access & security, broadcast & second screen communications, and payments & transactions. The company uses inaudible sound waves called Smart Tones™ to transmit customizable packets of data that can enable device connectivity everywhere.

LISNR is a JumpStart portfolio company. The investment came from the JumpStart NEXT Fund