Code point
U+3349
Glyph appearance depends on your fonts.
U+3349
So<square> 30DF 30EAU+3349 SQUARE MIRI is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+3349
13129
㍉
㍉
E3 8D 89
3349
00003349
%E3%8D%89
\u3349
\u3349
\u3349
\3349