Its lower-case form, ⟨ɓ⟩, represents a voiced bilabial implosive in the International Phonetic Alphabet.

It is used to spell that sound in various languages, notably Fula, Hausa, and Giziga.

In Unicode, the upper case Ɓ is in the Latin Extended B range (U+0181), and the lower case ɓ is in the IPA range (U+0253).

used a different capital form, similar to the Cyrillic letter be (Б).

[1] A New Testament in the Loma language of Liberia, which was typeset in 1971, used this capital form.