Great product, excellent quality / price !! I use it for almost one month every day for 45-60min complementing March-April jogging a week and I can already see my abs to draw !! The belt to a very good battery life I just change the batteries and 2 is home to use it daily! Nothing to re-tell for the price really good product that I recommend it obviously draws the muscle, it does not lose weight and really apparent results must still be physically active to rate! But great complement for those who are not a fan of endless sets of abs like me !! ;)