Alarm for 20 Minutes - 搜索视频

20 Minutes Silent Countdown Timer | With Alarm Sound at the end.

20 Minutes Silent Countdown Timer | With Alarm Sound at the end.

#countdown #timer #20minutes 20 minutes countdown timer with alarm. We start with 5 seconds before the timer starts (5 beeps will sound) and end with an alarm to inform you the time is up. Please consider to subscribe, Thanks for watching.

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