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

佢只係一隻單點發聲嘅喇叭
It's just a single-tone horn.

Cantonese Sentence Breakdown

heoi5
he
she
it (Cantonese)
Mandarin equivalent: 他tā [他]
只係 zi2 hai6
only (spoken)
jat1
one
single
a (article)
as soon as
entire
whole
all
throughout
"one" radical in Chinese characters (Kangxi radical 1)
also pr. [yāo] for greater clarity when spelling out numbers digit by digit
first (positional)
one part of a fraction, such as 'a' quarter, an eighth
a short duration (when used with a verb)
each
same
dedicated
from the start
zek3
classifier for birds and certain animals, one of a pair, some utensils, vessels etc
single
alone
one only
one of pair
month (in prison sentence)
單點 daan1 dim2
à la carte
發聲 fat1 seng1
speak out
koi3
indignant
generous
to sigh (with emotion)
喇叭 lai1 baa1
horn