Voiceless labiodental affricate

From Freepedia

A voiceless labiodental affricate ([pf] in IPA) is a rare consonant, which is initially articulated as a plosive, but is released as a voiceless labiodental fricative [f].

The bilabial-labiodental affricate

In the High German languages, including Standard German, the labiodental affricate starts as a voiceless bilabial plosive, [p], as in Pfund [pfunt] "pound" and [apfɛl] Apfel "apple". That is, it is actually a bilabial-labiodental affricate.

Its voiced counterpart, the voiced labiodental affricate, [bv], is rarer still.

The true labiodental affricate

There are languages with true labiodental affricates, such as the XiNkuna dialect of Tsonga: [tim̪p̪fuβu] "hippos" and [m̪p̪fʰuka] "distance" vs [m̪futsu] "tortoise" (this shows that the plosive is not epenthetic); [ʃileb̪vu] "chin" vs [kuvumba] "to scratch". Interestingly, there is no voiceless labiodental fricative [f] in this dialect of Tsonga, but only a voiceless bilabial fricative, as in [ɸu] "finished". (Both voiced [β] and [v] occur, however.)