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

Other sounds:
a labio-velar central approximant [w]
voiceless stops, affricates, and sibilant fricatives can be ejective
voiced and unvoiced velar labialized stops

(from: Maddieson, I. 1984. Patterns of Sounds. Cambridge: Cambridge University Press.)