1.Principle:Ultrasonic wave and the mechanical vibration generated by high frequency current; 2.Easy to use A:According to everyones different requirements, it is set to 2 levels that are strong and weak B:Its very convenient for you to carry out.This is your best partner of your beauty and health. C:Time and output way of ultrasonic wave can by changed. 3.Safe to use By utilizing DC18V low power source Features: 1,Massage your deep-seated skin. A:Bringing heat effects B:Increase the metabolism of skin tissue C:Improve the circulation of blood. 2.Make your body fat digested by your body function 3.Make your figure more attractive. Specification: Power source: DC18V Product size(LXWXH): 20x17x8 cm Weight: Approx. 400g. Pack:1pcs/gift box, 30pcs/outer carton/67x37x55 cm.