Merchant Solutions

Send Data Securely Using Audio

LISNR® powers seamless payment experiences, connecting the online to offline customer journey with the most advanced Ultrasonic Data Platform. This is achieved via a secure and scalable software solution that sends micro-communications using sound between devices on standard speakers and microphones.

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Why Sound?

Software vs. Hardware

Software vs. Hardware

Implement and execute across all operating systems and devices, allowing for advantages in cross-device flexibility.



Detection range depends on audio type, amplitude/volume, and power. Sound surpasses the physical limitations of short-range radio based protocols.

Consumer Experience

Consumer Experience

Seamless and consistent consumer experience, regardless of the operating system or manufacturer of the consumer's device.

Cost Advantages

Cost Advantages

LISNR can be transmitted using standard speakers and microphones. This bypasses the cost disadvantages of RF-based protocols.



Our technology can support industry standard security/encryption methods. Locally generate tones on devices and send encrypted data creating secure communication between devices.


We use tone and data type optimization techniques to ensure a seamless and consistent connectivity experience for diverse operating systems, devices, and environments.

Low Power

LISNR® has proven itself to be the most battery and CPU efficient across the entire software spectrum, from the application level to embedded systems, with significant advantages in power optimization at the chipset level.


As our payload continues to increase - our current innovation, the KAB® (Kilo Audio Bit), has a maximum throughput of 1,000 bps.

Tone Profiles

We created tone profiles optimized for usage variables such as range , digital media compression, and payload to maintain reliability. All tone profile types are compatible with a single SDK.

Data Payload Types

We optimized tone types for the following uses: text (ASCII), ID, and binary data to maintain reliability.

Local Tone Generation

(Offline data transmission) This enables local data encoding and decoding for device-to-device communication without server connectivity.

Intellectual Property

Our proprietary technology has the best-in-class performance and the earliest global IP filing date for comparable data-over-audio solutions.

Let's Start Building

Learn how to start sending data over audio, or just drop us a line. We'd love to hear from you.