Starts with a 5 sec pre-count and then plays a five beep countdown before each round, plus an alarm after 40 rounds with 60 sec overtime.

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90-Second Circuit Training Workout
Video by: DietHealth
Link:    • 90-Second Circuit Training Workout  

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For a specific number of rounds other than 40 here's timestamps for every fifth:
∙ 5 rounds / 7 min 30 sec (52:31)
∙ 10 rounds / 15 min 00 sec (45:01)
∙ 15 rounds / 22 min 30 sec (37:31)
∙ 20 rounds / 30 min 00 sec (30:01)
∙ 25 rounds / 37 min 30 sec (22:31)
∙ 30 rounds / 45 min 00 sec (15:01)
∙ 35 rounds / 52 min 30 sec (07:31)

To create a link directly to the number of rounds you wish to use just write the connected timestamp in the end of this url:    • Interval timer - 1 min 30 sec rounds ...  
(for example a link to this interval with 20 rounds (30 min 00 sec length) looks like this:    • Interval timer - 1 min 30 sec rounds ...  )

To make it longer than 60 min and repeat endlessly instead use the following link: http://loopvideos.com/2b4Ivd1XgMw?fro...

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I own all rights to both the video and audio files used in all my uploads, and every video is manually self-made from scratch using programs for which I have licenses. Credit and thanks for help creating two CC0 clips for my audio files goes to: TobiasCovers (   / tobiascovers  ) & ryanconway (https://freesound.org/people/ryanconway).

If you wish to use my video as a Picture-in-Picture complement in your own video, then start by sending me a private message explaining how you want to use it and what kind of video content it is. Most often it will be okay as long as you ask first and then follow a few simple conditions. However neither video nor sound from this copyrighted work may be used without my approval, doing so will be reported without warning.