Weight training is synonymous with dumbbells and barbells, but the “O2”, an armband-like device, could change all that by letting you lift up to 52-pounds without the use of large equipment. This inventions allows fitness freaks to do a full and adjustable weight training workout using the power of magnets. Continue reading for more pictures and information.
They are powered by embedded electromagnets that provide varying degrees of push and pull resistance. The dumbbells claim to provide the user with all the benefits of traditional dumbbells without the effort of changing equipment for each exercise.
The strength of these electromagnets can be set by adjusting the level of electric power according to the work out intensity needed. The display indicates 8-circled bars which each represents an additional weight of 6lb. The users are then able to choose the right training weight ranging from between 6lb to 52lb.
[Source]
