Specifications: Name: Ultrasonic Skin Scrubber Function: Ultrasonic, lon+, lon-, Lifting Weight: About 230g Materials: ABS, stainess steel/Waterproof Ultrasonic Frequency: 24000Times/Sec Charging Time: appr. 2.5 hours Package includes: Skin Scrubber x 1 ; Charging Cable x 1 ; User Manual x 1; 1 x Charging Stand Feature: -- Ultrasonic Vibration for Lighting and tighting. -- ?Lon+, Lon-. The introduction function enables the nutrient solution to reach the base directly, and the muscle bottom is directly absorbed and locked. -- ?Use 2-3 times a week for no more than 3 minutes each time. ? Note: Please do not use it excessively, which may cause skin damage. Do not use while charging. It works better together with skin care products such as deep cleansing oil, cleaning foam, toner, massage cream, essential oil, essence cream.