LISNR

LISNR is a technology company based in Cincinnati, Ohio, founded in 2012.

It specializes in data-over-audio technology, particularly through its ultrasonic SDK called Radius. This innovative platform enables brands to engage customers throughout their shopping journey by facilitating secure and contactless data transfer using standard speakers and microphones, without the need for specialized hardware or internet connectivity. The Radius ultrasonic SDK utilizes inaudible "Smart Tones" to transmit data for various applications, including proximity detection, identity verification, and contactless payments. This technology offers an alternative to traditional radio frequency and Bluetooth solutions, enhancing interactions from TV ads to in-store experiences. LISNR serves a diverse range of clients, including major brands like Ticketmaster, Jaguar Land Rover, Visa, and Intel, and operates in eight countries, powering over 100 million devices.