How to pronounce 揚聲器 in Cantonese (2 out of 3):

都配有立體聲嘅揚聲器
They're all equipped with a 3D speaker.

Cantonese Sentence Breakdown

dou1
all
both
entirely
(used for emphasis) even
already
(not) at all
metropolis
capital
big city
the whole
elegant
refined
without exception
also
too
still
used in a sentence to add an inference or interrogative tone
配有 pui3 jau5
equipped with
立體聲 lap6 tai2 sing1
stereo
koi3
indignant
generous
to sigh (with emotion)
揚聲器 joeng4 seng1 hei3
loudspeaker