Interval Timer Without Music – HIIT 40 sec Work / 20 sec Rest | 74 Channel: Workout Music With Timer255K views • 19/04/2021Related VideosInterval Timer With Music | 40 sec rounds 20 sec rest | Mix 101Interval timer - 40 sec rounds / 20 sec rests (including links to 19 workout routines)BRANDNEW: HIIT MUSIC - Next Level | 40/20 HIIT WORKOUT20 min Hiit timer 60 rounds and 40 sec rest - For a good training session, no more excuses | Mix 112