Something unusual is happening to a very familiar format. Digital signage, long defined by its ability to broadcast, has started to listen.
In Finland, K-Supermarket is piloting a digital billboard that combines voice activation, real-time interaction, and AI-generated responses. Installed across shopping centres in Helsinki, Lappeenranta and Tampere, the screens invite passersby to stop and have a conversation with an animated “Lil’ shop assistant”.
The idea is simple enough. Ask what to cook and the assistant suggests a recipe. But the way it gets there is what sets this apart. The interaction is voice-led, so there’s no interface to navigate to get a response. And it’s powered by AI, meaning those responses are shaped by what the user actually says rather than pulled from a fixed list.
Behind the scenes, the system processes spoken input, interprets intent, and constructs a response using a curated recipe database. The result is delivered conversationally, and if the user wants to keep it, a QR code bridges the gap to their phone.
Interactive Inuits, the studio behind the activation, says the biggest challenge has been getting the elements to work together smoothly to deliver responses that don’t feel awkward or robotic.
The project demonstrates that if this type of interaction in public spaces is likely to become more commonplace then DooH is set to evolve beyond display performance and encompass microphone placement and noise handling too. And the success of campaigns won’t just be measured by whether the screen is seen, but whether people are willing to engage.