is a Japanese electronic money system introduced by ÃÂON in April 2007. It is a rechargeable contactless smart card. Like many other smart card systems in Japan, it uses RFID technology developed by Sony known as FeliCa. Its name comes from , meaning chord. The card's official mascot is a white dog. The card reader makes a "waon" sound upon successful transaction, a Japanese onomatopoeia for dog barks.
Unlike the nanaco card issued by Seven & I Holdings, the basic Waon card can be purchased without any registrations. Like other FeliCa-based systems, Waon has a mobile payment system, known as Mobile Waon.
Waon Card is issued by ÃÂON, while other two cards are issued by AEON Credit Service.
As of September 2007:
Within 2008:
In Kantà  region, AEON Group stores accept Suica, , and PASMO as well. For other regions, they plan to accept other cards such as ICOCA or TOICA.
All JAL Mileage Bank cards issued in Japan built-in with Waon. However, JAL Mileage Bank cards issued overseas does not feature this function.