Features: Adopt electronic muscle simulator technology, through the human body\'s biological current nature and its close to the microcurrent, stimulate muscle, autonomous contraction movement. There are 15 levels of intensity can be adjusted, you can adjust the appropriate intensity according to your needs, also with 6 modes for you to choose from. Small in size and easy to carry, you can keep it at home and it won\'t take up too much space. Suitable for a variety of people such as muscle training enthusiasts, office workers, lazy people, sports person, suitable for man and woman to use. Built-in lithium battery, you can recharge it easily, made of ABS material, has a long service time. The type3 with three heating functions, three temperature can be adjusted: 39℃, 41℃, 43℃. This function can give you a better exercise effect, the type2 is equipped with a remotes control for you to use.