The outer box has been opened, but the item is a new, unused product. A new method to boost the skin's self-sustaining power, including a 39% increase in collagen production. ・The main feature is the wide inverter function RF (radio frequency)... By adjusting the temperature over a wide range of 1MHz to 3MHz, professional-level RF effects can be safely achieved. ・This promotes collagen production, leading to plump and firm skin. ・In addition, the EMS function, which provides tightening, lifting, and a slimming effect, has 4 adjustable levels. Red and green LEDs also operate simultaneously. ・Furthermore, a COOL function is also included in the slim body, like a smartphone. It calms the skin after treatment and tightens pores at the same time. ・The arrangement of the elements and the uneven shape of the head (treatment surface) are also carefully designed to more effectively approach the deep layers of the skin. A new method to boost the skin's self-sustaining power, including a 39% increase in collagen production. ・The ligament points on the top of the head allow you to care for the ligaments that connect bones, muscles, and skin. ・A high-performance battery is installed in the compact body. It can be used for 28 days on a full charge (when used for 6 minutes a day).