Kalanga language

Kalanga, or "TjiKalanga" (in Zimbabwe), is a Bantu language spoken by the Kalanga people in Botswana and Zimbabwe. It has an extensive phoneme inventory, which includes palatalised, velarised, aspirated and breathy-voiced consonants, as well as whistled sibilants.
Kalanga is recognised as an official language by the Zimbabwean Constitution of 2013 and is taught in schools in areas where its speakers predominate.
Classification and varieties.
Linguists place Kalanga (S.16 in Guthrie's classification) and Nambya (in the Hwange region of Zimbabwe) as the western branch of the Shona group (or Shonic, or Shona-Nyai) group of languages, collectively coded as S.10.
Kalanga has a dialectal variation between its Botswana and Zimbabwean varieties and they use slightly different orthographies. Historically, Wentzel mentioned Kalanga proper in the east and Lilima (Tjililima, Humbe) on the west, as well as varieties that are now rare or extinct: Nyai (Rozvi), Lemba (Remba), Lembethu (Rembethu), Twamamba (Xwamamba), Pfumbi, Jaunda (Jawunda, Jahunda), and †Romwe, †Peri, †Talahundra (Talaunda).
Phonology.
Vowels.
Kalanga has a typical five-vowel system: