Bluetens Duo Sport electro stimulator with accessoriesCombination of exercise and electrostimulation for muscle building Build muscle mass and at the same time accelerate regeneration. The Bluetens Duo Sport electro stimulator with accessories is composed of two wireless devices connected to three electrodes, which allows you to undergo regular training without muscle fatigue and brings relief thanks to a variety of care programs. Get rid of pain or perform a massage and achieve your goals faster.