@clocktocktimer: 45/15 Interval Timer This 45/15 Interval Timer is great for exercising when you're on the go with just your phone. No Audio. Just a Countdown beep with a loop repeat format for as many repetitions as you need. A stylish countdown clock for your HIIT routine, gym session, weekly workout, or any method of fitness you're into. #gym #timer #hiittimer #intervalltraining #workout