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Retail

Drive Seamless Shopping Journeys and Boost Customer Engagement with Ultrasonic Proximity

Connect every stage of your customer journey through one communication channel — sound.Ā 

LISNR’s ultrasonic SDK, Radius, is transforming how merchants identify, engage, and sell to customers before, during, and after checkout. Combined with LISNR’s Quest loyalty platform, retailers can create gamified, personalized experiences that increase sales and long-term loyalty.

LISNR Radius + Quest: All-in-One Proximity Engagement Solution

The leading ultrasonic solution for in-store and omnichannel engagement.

LISNR’s Radius product establishes a direct communication channel between consumer devices and your in-store speakers. By detecting proximity to personal devices, merchants can enable frictionless presence detection, personalized promotions, and mobile checkout. LISNR expands the experience with a loyalty management portal, Quest. By adding loyalty, retail stores can create gamified experiences, rewards, and offers directly into the retailer’s ecosystem.

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Macro Use Cases: How Retail Companies Use Ultrasonic Technology

Streamline the entire customer journey and lead in innovating in-store and out-of-home shopping experiences.Ā 

Proximity Verification

Identify and greet customers as they enter your store to trigger tailored experiences.

  • Greet customers with targeted offers
  • Reduce wait times at service counters
  • Streamline online pickups

With LISNR, retailers can check in customers at entry creating a personalized shopping experience. Trigger loyalty perks, alert staff for VIP service, and capture dwell time analytics, all helping to increase transaction size and improve customer experience.

Authentication

Securely confirm the presence of a shopper or associate. Customers can complete ā€œbuy online pickup in storeā€ (BOPIS) transactions, locker-pickup, and in-store returns without relying on staff.

  • Prevent fraud at pickup counters
  • Enable loyal-only access areas
  • Verify device presence without network
  • Streamline Back-of-House Operations

With ultrasonic authentication, retailers can protect high-value transactions and enable staff-only workflows without relying on barcodes, QR codes, or connectivity.

Mobile Checkout

Consumers can add promotions to their account while shopping, at-checkout all coupons will automatically be added to their cart.

  • Expedite checkout lines
  • Streamline coupons though one customer record
  • Provide consistent experiences across store formats

Ensure secure, real-time payment validation, while updating loyalty balances and rewards instantly, even mid-aisle.

Proximity Marketing

Deliver context-aware promotions and gamified rewards based on location (at entry, in aisle, in specific departments).

  • Boost engagement during dwell time
  • Trigger high-converting offers in specific aisles
  • Create scavenger hunt or challenge-based loyalty campaigns

Ultrasound makes it possible to run interactive campaigns in-store without beacons, NFC, or specialized hardware — just speakers and mics.

Loyalty

Quest creates a unified customer profile so retailers know what consumers like and don’t like. With this capability, retailers are able to identify consumers in-store and serve them high-converting promotions.

  • Incentivize the most impactful consumer actions
  • Unified customer profile to connect online and offline personas
  • Gamify the in-store experience with proximity identification

LISNR reimagines how and where stores loyalty programs interact with consumers across their journey. Consumers can earn loyalty points across any digital touchpoint in their journey. Stores can capitalize off loyal consumers by incentivizing anything.

Offline Transactions

Process engagement and purchases with limited connectivity (data sync needed once every 24 hours).

Increased Revenue

Authenticate customers while delivering offers, receipts, or post-purchase actions.

Gamified Incentives

With Quest, reward customers for engaging, visiting certain departments, or making repeat purchases.

Up-to-Date Analytics

Access broadcast and detection tables to improve operations and campaigns.

Secure Transactions

Only intended devices receive exclusive promotions or payment data.

Consumers Proximity

Track in-store movement to understand dwell tim, and deliver timely promotions.

Benefits for Retail Leaders

What else can you do once proximity is established?

Create a smarter, more responsive consumer journey that meets the evolving needs of consumers, addressing everyday operational needs and customer expectations from loyalty and advertising to security and fraud prevention.

At-Home
Radius enables TV advertisers to deliver synchronized, interactive experiences by embedding ultrasonic signals into on-screen audio. Viewers’ mobile devices can detect these signals in real time, triggering companion content, offers, or calls-to-action without requiring pairing or internet connectivity. This creates a seamless second-screen engagement, bridging TV and mobile to drive measurable conversions and enhance viewer interactivity.
Identification upon entry
Radius enables retailers to instantly identify and authenticate customers upon entry without relying on Wi-Fi or Bluetooth. Using ultrasonic technology, a in-store speakers interact directly with shopper’s mobile devices to securely exchange data with retailers. Once this is established, retailers can trigger personalized greetings, loyalty point updates, or targeted offers the moment they walk in. This frictionless check-in enhances customer experience, streamlines service, and enables real-time, data-driven engagement from the start of the visit.
In-Aisle Promotions
Radius enables retailers to deliver precise, in-aisle promotions without relying on internet connectivity or Bluetooth beacons. Using ultrasonic signals, shoppers’ devices can detect their exact location in the store and trigger personalized offers, product information, or loyalty rewards in real time. This hyper-targeted engagement increases conversion rates, encourages product discovery, and enhances the overall shopping experience with relevant, timely content.
Loyalty
Quest Loyalty allows retailers to reward customers for actions across the entire shopping journey, from browsing and in-store visits to purchases and referrals. Through gamified challenges and personalized incentives, shoppers earn points, unlock rewards, and engage more deeply with the brand. This drives repeat visits, increases lifetime value, and transforms routine transactions into interactive, loyalty-building experiences.

Comparing Ultrasonic to Alternative Modalities for Retail

Which modalities are best suited for your urban mobility initiatives?Ā See how they compare here.

When it comes to retail technologies, ultrasonic technology stands out as a versatile and reliable solution for ecosystem leaders. LISNR stands out compared to other modalities, most notably with its versatility – with one solution, industry leaders can provide presence detection across the consumer journey without specialized hardware. In a head-to-head of retail tech, ultrasonic technology surpasses traditional modalities like Bluetooth (BLE), RFID, and NFC in terms of precision, interoperability, reliability, accessibility, and battery consumption.

01.

Ultrasonic vs Bluetooth (BLE)

Ultrasonic technology offers several advantages over Bluetooth (BLE), including the ability to work without internet connectivity and compatibility with a wide range of smartphones and devices.Ā 

BLE bleeds through walls and aisles, making it nearly impossible to narrow down the presence of a customer. Without the ability to bleed through walls, Radius uses the properties of sound to its advantage to connect in-store PA speakers directly to consumer devices.

02.

Ultrasonic vs NFC

Ultrasonic technology outperforms NFC in several key aspects in the realm of contactless communication. Unlike NFC, which relies on hardware-specific devices and is not globally available on all mobile devices, ultrasonic tech is accessible on any handheld device with a microphone and speaker.Ā 

Ultrasonic stands above the competition by offering long-distance communication as well, the range limits of NFC provide major challenges for identifying consumers in-aisle.

03.

Ultrasonic vs QR Codes

Ultrasonic technology offers a more versatile, secure alternative to QR codes, which have long been used for consumer-driven action items in-store. QR codes rely on visible identification methods that shoppers miss in-aisle. Additionally, QR codes require cameras and online connectivity for data retrieval.Ā 

Ultrasonic technology eliminates the need for visible identification and internet access, enhancing efficiency and security in transit technology.

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