these are the sounds found in most native Gusii dialects:
there are also sounds not on the chart

Other sounds:

labial-velar central approximant /w/
long counterparts of all vowels
nasal syllabic clusters (e.g. /mb/, /nd/, /nk/)

(from: Whiteley, W.H. 1960. The Tense System of Gusii. Kampala, Uganda: East African Institute of Social Research.)