With its high EMS technology, it stimulates your skin and body muscles and eliminates your wrinkles and sagging. green mode: Promotes microcirculation of the body surface, dredges lymph and relieves swelling. Blue mode: Effectively heals skin problems, reduces acne and helps kill bacteria. Red mode: Effectively stimulates skin - revitalizes collagen - improves dark skin - removes fine lines and wrinkles can only be used once a day, and it is recommended to use the three modes in a row once every day. Package content: 1 device, 1 USB charger and user manual