> The Quasi-Zenith Satellite System (QZSS) (Japanese: 準天頂衛星システム, Hepburn: juntenchō eisei shisutemu), also known as Michibiki (みちびき, "guidance"), is a regional navigation satellite system (RNSS) and a satellite-based augmentation system (SBAS) developed by the Japanese government to enhance the United States-operated Global Positioning System (GPS) in the Asia-Oceania regions, with a focus on Japan.
To assist people with disabilities, you can request a little electronic reader that clips over the corner of the bill:
> the iBill Talking Bank Note Identifier, is now available free of charge from the Treasury Department to any US citizen who is blind or visually impaired.
> It can speak the dollar amount; it can produce a different pattern of tones for each denomination; or it can vibrate silently
> The United States is the only country that prints all denominations of currency in the same size. The US and Switzerland are the only two countries that use the same colors for all of their various bills.
https://en.wikipedia.org/wiki/Quasi-Zenith_Satellite_System