TIENS Multifunctional head device It helps to use a pleasant massage experience to users. It is not suitable for its use. This device helps to get rid of stress and give users a pleasant massage experience. It can be used especially in the shoulder, arms, basin areas and other body regions where massage is needed. However, it is recommended that people with a pacemaker and similar metal devices should not use this product. To get more information about the use of this device, please review the user manual of the product.