The PMD Clean Pro Obsidian Black is a smart facial cleansing device that uses SonicGlow™ and ActiveWarmth™ technology with an obsidian stone to take your skincare routine to the next level. SonicGlow™ technology breaks down dirt and oil from within the pores at 7,000 vibrations per minute while operating at a perfect frequency to lift, firm, and tone the skin. The device uses heat therapy combined with SonicGlow™ technology and an obsidian gemstone to activate your skincare by assisting with deeper absorption and effectiveness. Obsidian is known to eliminate toxins, reduce puffiness, and improve skin elasticity.