Code point
U+1D66
Glyph appearance depends on your fonts.
U+1D66
Lm<sub> 03B2U+1D66 GREEK SUBSCRIPT SMALL LETTER BETA is a Unicode 16.0.0 character in the Modifier Letter category. It belongs to the Phonetic Extensions block.
Choose the representation you need, then copy its value.
U+1D66
7526
ᵦ
ᵦ
E1 B5 A6
1D66
00001D66
%E1%B5%A6
\u1D66
\u1D66
\u1D66
\1D66