This is the Lesnove Core Impact, modeled by Seohyun of Girls' Generation. It's a well-known home care beauty device in Korea that uses ultrasound to improve skin hydration and reduce wrinkles. I purchased it for about 50,000 yen, recommended by a friend in Korea. I bought it there. I bought it to give to an acquaintance, but I never had the chance to give it to them, so I'm putting it up for sale. I opened it for the photos, but it has never been used. The condition is very good. Please note that the box has a small doodle on it that my daughter made.