This emoji represents the flag for Macau SAR China. On the Windows platform, the emoji will show as the letters MO.
The flag: Macau SAR China emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the
flags category. Because the flag: Macau SAR China emoji has been around for quite some time, it should display correctly in the majority of operating systems.