The slendertone abs s7 unisex is the most advanced abs belt yet from the slendertone range and offers the greatest intensity up to 150 and 10 programmes including initiation to pro endurance beginner crunch and advanced crunch within those programmes there are 7 passive programmes no physical activity required and 3 active programmes so you can use the belt while doing exercise other features include built in warm up and cool down phases to ensure correct muscle usage intelligent tr