Wi-Fi poster
CJ Entertainment techs out a wild posting.

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South Korean film distributor CJ Entertainment and Cheil teched out an old medium: the poster. Embedding Wi-Fi technology into the paper, passersby could connect to the signal as they walked past, bringing up whichever movie CJ was promoting. Wi-Fi transmitting paper? What will they think of next?
Credits:
Advertiser: CJ Entertainment
Agency: Cheil
I believe they have already thought of WiFi Hotspots with ads. But this is a nice execution of it.