Empower Every Interaction with LISNR® Radius® 3.1

Enhance Customer Engagement & Secure Proximity Transactions

How do Mobility, Retail, and Financial Services leaders deliver secure, fast, and reliable customer interactions that reduce fraud and improve engagement?

Simple. By leveraging Radius® 3.1 ultrasonic technology to optimize every micromoment:

✅ Hands-off AES256 encryption

✅ Secure proximity-based transactions with ToneLock™

✅ Enable mPOS payment transactions up to 10 feet

AES256 Encryption

New Tone Profile Zone266 

ToneLock™ Security

One SDK to create secure, data-driven, and scalable customer interactions—all without relying on expensive hardware or complex infrastructure.

Our experts can't wait to show you how Radius® 3.1
unlocks your customers’ most important micromoments.

AES-256 ENCRYPTION

Built-in Data Protection

Seamless SDK Integration
Enable encryption for all your ultrasonic payloads - no key management required.  

AES-256 at Rest & In-Motion
Payloads are encrypted on transmit, decrypted on receive; Tone Service API can output encrypted MP3/WAV artifacts for audit and compliance.  

Enterprise & Regulatory Ready
A tried and tested security method meets your toughest security and compliance mandates.

NEW TONE PROFILE: Zone266

Optimized for Mid-range Transmissions

Enable high-throughput transactions at a distance. With Zone266, you can reliably send and receive data within 10+ ft. Zone266 is perfect for situations with:

ToneLock™ SECURITY

Embedded Lock on Tone Payloads

Make sure your data is only demodulated by the intended recipient with Radius® 3.1’s built-in security feature, ToneLock™, giving you an additional layer of fraud protection.

Now Radius® 3.1 offers hands-off ToneLock™ for all transactions within customers' LISNR portal account:

Protect Your Data With Unparalleled Security
From Transmission to Demodulation

Watch now, how you can choose to encrypt your ultrasonic payloads
with AES-256, the industry’s most robust encryption standard.

Our experts can't wait to show you all the other new features to unlock your customers’ most important micromoments.

Struggling to Manage Secure, Frictionless Customer Interactions Across Multiple Channels?

As a leader in Mobility, Retail, and Financial Services, you need to future-proof customer experiences so that you can:

• Secure Transactions—No Extra Hardware Required
  Add an extra level of security to proximity-based transactions with ToneLock™ or encryption for seamless, secure interactions.
• Meet the Consumers Where They Are
  Enable reliable and secure transactions at 10 feet. Create tailored experiences that drive satisfaction and loyalty on-prem or digitally wherever the consumer is.
• Optimize Operations with Actionable Insights
  Use real-time data insights to refine customer journeys, operational efficiency, and revenue channels—without the guesswork.

Don't Miss Any New Feature: Get a Demo

• Audibility Controls & Deeper Callbacks
  Tailor volume, overlay audible cues, and trigger smarter app logic on every tone event.
• Multichannel Transceiving
  Send and receive up to three payloads simultaneously to slash hand‑off time.
• ToneLock™ Security, upgraded
  3 flexible locking modes stop spoofing and signal theft before it starts.
• Zone266 Tone Profile
  A new mid‑range, high‑speed profile for those just‑out‑of‑arm’s‑reach moments.
• AES‑256 Encryption Baked-in
  End‑to‑end protection, online or offline, no extra libraries required.

And of course, everything you already rely on from Radius 3.0: Multi‑channel transmission, real‑time UX indicators, and our SDK‑only, hardware‑free approach…

Copyright 2025 LISNR®, Inc. | Privacy Policy | EULA