Mozambique
Changana is one of over 40 native languages of Mozambique. It is a Bantu language spoken in the southern Provinces of Gaza, Inhambane (partially) and Maputo.

Changana is closely related to Ronga which is spoken mainly around Maputo. You will often hear a mixture of the two languages. While the grammar is very similar, a lot of the vocabulary is totally different.

South Africa
Changana is also closely related to Tsonga, one of the 11 official languages of South Africa. Tsonga is spoken in South Africa’s most northern province, Limpopo.

Other countries
According to Ethnologue Changana is also spoken in Zimbabwe and Swaziland.