Appearance improvement: beautiful ergonomic design, piano baking process with medical antiskid silica gel, high-end atmospheric grade USB charging improvement: convenient charging, environmental protection and durability, increase over-current protection, prevent overheating, safe and assured Strength improvement: 3-speed power switch is optional, and 99% makeup brush is available on the market Base lifting: more stable anti-skid and anti scratch design, real materials increase the sense of stability Bottle body improvement: new pet material, beautiful and fall resistant, scale reminder and convenient scrubbing concave convex groove, easier to clean stubborn stains