Voltage: AC220V±10% Ultrasonic frequency: 1. 7MHz ± 10% Continuous working time: ‰¥4h Consumption power: ‰ 50W Max medication capacity for small cup: 150mL Max medication capacity for big cup: 350mL Max nebulizing rate: ‰¥ 3mL/min 402AI ultrasonic nebulizer Features: various uses, more suitable for home use. a. This product is suitable for the surroundings, which need faint scent or disinfectant, or increasing humidity. It has a 350mL reservoir, more convenient for use. b. Facial cleaning & beauty care Applying over 1MHz ultrasonic nebulized mist to clean the face is very effective, and it is a usual skin care method, very convenient and comfortable. c. Jewellery cleaning Immerse the jewellery in the detergent and then turn on the machine. The grease and dirt can be removed from the jewelry after 10 minutes.