A 20 minute Cardio session including 1 minute & 2 minute intervals Reminder of the different Effort Levels below.
Just prop your phone or tablet in front of you on a Cardio machine and click Play to follow. Example cardio machines it works well on are Stair climber, Elliptical (cross trainer), Bike, Rowing machine and Treadmill.
First version has music and 2nd without music