The main unit only will be shipped with waterproof packaging. I used it once, but it didn't suit my skin, so I'm selling it. - Function: Hair removal device using nano-glass technology - Application: Painless hair removal 【Completely painless! New generation nano hair removal technology with no skin irritation】 Adopting the latest nano-glass technology, it's designed to be gentle on the skin with zero chemical ingredients. You can remove unwanted hair painlessly by gently rubbing it in a circular motion.