How to pronounce 按鈴 in Cantonese (5 out of 6):

記得訂閱和按鈴
Remember to subscribe and ring the bell.

Cantonese Sentence Breakdown

記得 gei3 dak1
remember
訂閱 deng6 juk6
subscribe
wo4
and
按鈴 on3 ling4
press the bell
tong1
an alternative form for 鏜, sounds of clock and drum