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Send Data Over Audio

Send Data Over Audio

LISNR is an advanced, near-ultrasonic, ultra-low power data transmission technology that enables fast, reliable, and secure communication between devices that have a speaker and/or microphone. Acting as a local proxy for data transmission, our technology is removing the need for complex, expensive, and power-consuming RF or audio fingerprinting-based technologies. LISNR is the creator of a proprietary, near-ultrasonic protocol that sends data-over-audio. Originally called Smart Tones™ in 2012, our audio technology has evolved into the KAB® (Kilo Audio Bit) which transmits data at 1,000 bits/sec. LISNR®’s protocol sends data-over-audio across bandwidths (12-19 kHz) that are audible or inaudible, depending on use case and distribution method, to ensure optimal performance. Additional performance enhancements include tone types and profiles, optimized for varying payload and environment characteristics of the actual use case.
Co-Founder: @LISNR & @SoLo Funds
Co-Founder @LISNR Founder @BlackbookHR

Josh Glick

Avatar for Josh Glick
Head of Mobile & Co-Founder @LISNR. iOS Developer and movie snob.
Total raised


Funded over

3 rounds

Latest round

Series B (Nov 2015)