1. Big LED display, time with all the working modes, and battery status display on the extra large LED screen in real-time, suction levels, working time, easily controlling your operation. changing the work mode, the timer will re-time and will be displayed. 2. Memory function button design when you use the vacuum blackhead remover slightly press the "M" button to enjoy your skincare time.5mins automatic shut down. 3. Safety, healthy pores remover is made of ABS environment-friendly material, which will not cause an allergic reaction to skin or irritate sensitive skin.