All you need is a pair of dumbbells.
Build muscle and gain strength with dumbbell workout.
Download the app and get everything you need:
+ Pre-set training plan
+ Illustrated exercises for each muscle groups
+ Voice feedback
+ Detailed history
+ Beautiful, fit body and strong muscles
Tips:
Select a weight that you’re comfortable with.
Only increase the weight when a set starts to feel as though it’s not challenging you anymore.