Interval timer - 40 sec rounds / 15 sec rests (40/15) - 40 ROUNDS -Cronometro 40 trabajo / 15 descan
1:00:03
Interval timer - 40 sec work / 20 sec rest - 60 ROUNDS - Cronometro: 40 trabajo/20 descanso
2:00:36
Intense Study - 40Hz Gamma Binaural Beats to Increase Productivity and Focus
18:21
BEST SPORT INTERVAL TIMER - 40 sec Exercise / 15 sec Break / 20 Rounds / GYM TABATA HIT - TIMER
44:58
Tabata Workout Counter 40' work 20' rest
34:05
Interval timer - 40 sec rounds / 10 sec rests - 40 ROUNDS - Cronometro 40 trabajo / 10 descanso
1:00:05
Tabata Timer 45" - 15" Centro Actívate
19:35
cronometro 40 segundos 15 descanso
1:00:50