I created my own interval timer using sounds I recorded on my phone within ten feet of the sofa. In this recording, a Brompton bicycle bell chimes first, then after a minute a Casio keyboard note "A" sounds two quick notes back to back. Then 30 seconds later the bicycle bell chimes again. Then one minute later the keyboard notes play again. And so on. Over and over for about 27 minutes. Enough time for a 25 minute workout.
I hope this is of use to you!
|Bob Weir gets it!|