This project is about an alternating current magnetic field magnetic therapy device with changeable frequency, especially a magnetic therapy device that can adjust the frequency of different alternating current magnetic field (i.e. super long wave) at any time according to the user's needs.It is mainly to install a control device in the AC magnetic field magnetic therapy device with changeable frequency. The IC inside the control device is used to adjust the frequency of the magnetic therapy device to meet the different needs of users.When using, selecting the required magnetic treatment frequency can make the AC magnetic field magnetic treatment device emit the AC magnetic field of different frequencies, which can give users different magnetic treatment effects, which is very convenient； therefore, users do not need to purchase multiple frequency machines at the same time, that is, it can be suitable for the use of the whole family, with a considerable advantage in the market competitiveness.本創作係有關於一種可變換頻率之交流磁場磁療裝置，特別是指一種可以依據使用者需求，隨時調整不同交流磁場(即超長波)頻率之磁療裝置。其主要係於該可變換頻率之交流磁場磁療裝置中加裝一個控制裝置，利用該控制裝置內部之IC來調節該磁療裝置之頻率，以適用使用者之不同需求。使用時，選擇需要的磁療頻率，即能使該交流磁場磁療裝置發射不同頻率的交流磁場，給予使用者不同的磁療效果，非常便利；因此，使用者不需同時購置多種頻率的機器，即能適合全家人使用，具有相當優勢的市場競爭力。
