◌᪶

Diacritical mark

 * 1)  Voiced (of a click letter)
 * 1)  Voiced (of a click letter)

Usage notes
Under click letters, which are quite narrow (e.g. $⟨ǀ᪶⟩$, $⟨ǁ᪶⟩$, $⟨ǂ᪶⟩$, $⟨ǃ᪶⟩$), the diacritic may have 2 humps rather than 3.