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Teraokaseiko announced a new Point-of-Purchase (POP) advertisement device that is made of electronic paper. It's already available for purchase. The cheapest one costs 3,400 Japanese yen (About US$30). With two standard AA batteries, the device works for about six months."
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RFID in JapanEarlier:ShelfAds Show Context Videos, Collect StatsE Ink: Digital Price TagsMore Price Tags on Electronic Paper