Those is pronounced THOHZ (IPA /ðoʊz/). Voiced 'th' at start, ending in a /z/ sound, not /s/.
IPA: /ðoʊz/
Syllables: THOHZ
Common ESL mistake: Learners say 'dose' or 'zoze' missing the voiced 'th'.
Tip: Voiced 'th' at start, ending in a /z/ sound, not /s/.