Block: Variation Selectors

Range U+FE00 - U+FE0F
Official Chart http://www.unicode.org/charts/PDF/UFE00.pdf
Wikipedia Variation Selectors is a Unicode block containing 16 Variation Selector format characters (designated VS1 through VS16). They are used to specify a specific glyph variant for a Unicode character. They are currently used to specify standardized variation sequences for mathematical symbols, emoji symbols, 'Phags-pa letters, and CJK unified ideographs corresponding to CJK compatibility ideographs.
https://en.wikipedia.org/wiki/Variation_Selectors_(Unicode_block)
Characters