Those is pronounced THOHZ (IPA /ðoʊz/). Voiced 'th' at start, ending in a /z/ sound, not /s/.
IPA: /ðoʊz/
Syllables: THOHZ
In 281 attempts by 41 learners scored in the SayWhat app, the sound most often scored red in this word was /ð/ (28% of attempts).
Common ESL mistake: Learners say 'dose' or 'zoze' missing the voiced 'th'.
Tip: Voiced 'th' at start, ending in a /z/ sound, not /s/.