Free 30-Minute HIIT 60/30 Interval Timer with Music. (20 High-Intensity Rounds + 20 Rest Periods) Channel: Tone Co Interval Training6K views • 1y agoRelated Videos30-Minute HIIT 30/60 Interval Timer, 20 High-Intensity Rounds + 20 Rest Periods (No Music)30-Minute HIIT/Tabata 60/30 Interval Timer, 20 High-Intensity Rounds + 20 Rest Periods (No Music)30 min Interval timer for a Cardio Workout - 60 sec work / 20 sec rest | Mix 63Workout Timer With Music - 30 sec work 20 sec rest | Mix 106