All click types (alveolar ǃ, dental ǀ, lateral ǁ, palatal ǂ, retroflex ‼, and labial ʘ) have nasal variants, and these are attested in four or five phonations: voiced, voiceless, aspirated, murmured (breathy voiced), and—in the analysis of Miller (2011)—glottalized.
They are typically transcribed something like ⟨ᵑǃ⟩; in Khoekhoe, they are written ⟨ǃn ǁn ǀn ǂn⟩, in Juǀʼhõa as ⟨nǃ nǁ nǀ nǂ⟩, and in Zulu, Xhosa, Sandawe, and Naro as ⟨nc nx nq ntc (nç)⟩.
They are typically transcribed something like ⟨ᵑ̊ǃʰ⟩; in Khoekhoe, they are written ⟨ǃh ǁh ǀh ǂh⟩, and in Juǀʼhõa as ⟨ǃʼh ǁʼh ǀʼh ǂʼh⟩.
Initially and in citation form, words with these consonants are pronounced with voiceless nasal airflow throughout the production of the click and in some languages for an extended time afterward; this period of up to 150 ms (the voice onset time) may include weak breathy-voiced aspiration at the end.
They are pronounced like modally voiced nasal clicks, but in addition are followed by a period of murmured phonation, and like other breathy-voiced consonants, may have a depressor effect on tone (in Zulu and Xhosa, for example).
They are typically transcribed something like ⟨ᵑǃʰ⟩ or ⟨ᵑǃʱ⟩; in Juǀʼhõa, they are written ⟨nǃh nǁh nǀh nǂh⟩, and in Zulu and Xhosa, as ⟨ngc ngx ngq⟩.