Ems Butterfly Portable Neck MassagerFeatures: 1. This mini massage patch can be used to massage different parts of the whole body, such as neck, back, waist, buttocks, legs, arms, etc. There are 8 massage modes and 19 adjustable intensities to meet the actual needs of different groups of people. You can choose the most suitable mode and intensity according to your personal needs. Effectively stimulate the inside of muscles, promote blood circulation, quickly relieve fatigue, relax