Ultrasonic and Cold / Hot Hammer Facial Unit 13.6”L x 10.1”W x 7.8”H It sends streams of high speed ultrasonic vibrations into the skin layers at incredible speeds of 28,000 vibrations per second. These safe high frequency vibrations are scientifically designed to remove any imperfections under the skin such as dead skin cells, black and white heads, dirt, & grease particles. The added benefit is a lifted effect that creates ultra-smooth, soft & supremely elastic skin. The cold & hot hammer is used to present products into the skin, by opening the pores and closing.