Description 1. Working Principle: Ultrasonic: Ultrasonic is in mechanical vibration per second, it makes the treatment area also in vibration so that to achieve the effect of cell massage; promote cell metabolism, enhance cell vitality, promot blood circulation, enhance skin elasticity what's more, ultrasonic has the effect of fat burning and lymphatic drainage. Radio Frequency RF: Radio Frequency RF can effectively thirnk the collagen tissue, speed up the fat metabolism, so that to achieve the effect of hips shaping, waist and arms shaping; in the same time, it also can enhance the dermis thickness, and achieve the effect of loose skin tightening, repair strestch marks and skin lifting. LED Color Light 624nm red light is with the features of high purity and high-intensity light, it has remarkable effect in skin care and health care treatment; the red light can improve the activity of cells, promote metabolism, and promote secretion of collagen and tissue; red light is suitable for all skin types, so that to makes skin more smooth, improve dry skin, hair loss and damage of hair follicles. Warm Therapy Promote Metabolism The warm effect of ultrasonic can cause the change of blood vessel function, and reduce cell excitement, produce the effect of analgesia; ultrasonic has the effect of accelerate metabolism, makes the PH value move to alkaline, it is good for drug penetration, improve drug sterilization ability. Features: Application:Body Item Name:Handy body slimme. Size:114*90*106MM Weight: 308G Power 100-240V:Electric /Rechargeable.Note: The device three functions can be used seperately, also can be used in any combination, such as RF+LED, RF+Cavitation, Cavitation+LED, LED+Cavitation+RF. Applicable parts: arms, belly, thighs, back, waist, hips, calves, etc.. Feature1.: RF radio frequency /Feature3.: LED 625 nm light Feature2.: CV Ultrasonic wave Feature/Inapplicable parts:face, neck, clavicle, elbow, wrist, thigh joints, knees, ankle, afterbrain, cervical vertebra,etc.. Feature3.:LED 625 nm light Output 12V 400mAH Defatting for :Leg hip arm belly waist back.etc Can not use on : FACE neck. Box may show wear, but product is new and in working condition.