1.Principle:By utilizing ultrasonic waves, the meachanical vibration waves generated by high frequency. 2.Make water alimentation easy to be absorbed through skin 3.For the problem of skin that exists pockmark,wrinkle,darkrim of eyes have been solved. 3.The creative design and contraption. 4.Easy to use. A:Two levels for optional:strong&weak B:Convenient for you to carry about. C:The time is 20 minutes each. 5.Safe for use; A:To use 12V low power source B:Quicker effect is to get desired result. Feature: 1.Massaging a deep-seated face shin A:Bringing heat effrcts B:Increase the metabolism of face tissue C:Improve the circulation of blood and lymph. Specification: Power source:DC18v Product size(LXWXH):19x16x7cm Weight: Approx. 400g. Package:1pcs/gift box,18pcs/outer carton/54x42x27cm.