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"Unos" is a form of "un", an indefinite article which is often translated as "a". "Un par de" is a phrase which is often translated as "a pair of". Learn more about the difference between "un par de" and "unos" below.
un par de(
oon
pahr
deh
)un(
oon
)An indefinite article is a word that indicates that a noun is not specific (e.g., a girl).
1. (singular)
b. an (before vowel sound)
Tienen una vieja cámara que todavía funciona.They have an old camera which is still working.
