U+0007, 
<control-0007>
(Abbreviation: BEL)
[unassigned: U+0000–U+0006][unassigned: U+0008–U+001F]
Basic Latin
[U+0020]
Presentations of 7︎
Text
style
Emoji
style
7︎ 7️
Note: Character's appearance
may be different on each system.
Text style is forced with &#xFE0E;
and emoji style with &#xFE0F;

Emoji