Cold massage 19& 8451; - Remove swelled eyes 80 seconds for each eye   Hot massage 40& 8451;/ 37-40 & 8451; - Ease eye stress, relax eye fatigue 85seconds for each eyes   Vibration High frequency vibration promotes blood circulation, stimulate meridian points around eyes to ease eye stress.   If you want to active eye skin, you can massage your eye with hot and cold mode alternately. Hot massage -180seconds/cold massage-180seconds, massage in turn alternatively Remove dark eye circles   The are 2 modes of the Hot Massage: Hot mode A and Hot mode B   Hot Mode A Level 1 -37& 8451; Level 2 -38.5& 8451; Level 3 -40& 8451;   Hot Mode B 40& 8451; Constant Warmness Care 40& 8451; constant warmness serves as the most suitable temperature for tender and sensitive eye around skin care. The temperature in this range can effectively massage skin around eyes and relieve eyes stress, remove eye bag, dark eye circle.   Use Guide Users should be noticed that the treatment time for each eye should be limited within a proper duration. This device will automatically power off in 6 minutes without any device operations. The right steps are as follow: Step1. cold massage for 80 seconds Step2. hot massage for 85 seconds Step3. vibration massage is advisable during these two massages modes.   Precautions Skin around eyes is tender and sensitive, users are advised to take off contact lens during using this device in case causing any hurts to eyes. Before use this device please clean your face first.   Package Includes: 1 x Eye care machine 1 x USB cable 1 x User Manual ( Packed by retail box, suitable for gift and home use )