led face mask light therapy, angel kiss 7 color blue & red light therapy facial skin care mask - korea pdt technology for skin rejuvenation anti aging skin tightening home beauty photon led mask angel kiss how to use:</br></br> step 1: wash your face before the treatment.</br> step 2: press the "power switch" button to switch the led mask on.</br> step 3: press "on/off" to start the treatment.</br> step 4: set the time by pressing the "time" buttons". to set the mode, press the "color" button. to adjust the intensity, press the "energy" buttons.</br></br>