This product is useless. It's all a bluff. At least in the big hospitals in Beijing and Shanghai, doctors with medical ethics will never recommend you to use such products to solve the obesity problem. Nowadays, many unscrupulous businessmen use people's attention to their body shape to promote the so-called latest technology, with the aim of making ill-gotten gains. The only way to lose weight is a reasonable diet and scientific exercise, which is really good for health. Other shortcuts are either ineffective or harmful to health.