1.Indicator light: When you start the machine, the LED lamp will still be lighting, when the machine is in low power, red light will flash, in charging status, the red LED lamp will flash, after charing, LED lamp will become blue. 2.On/Off and mode switch key: Long press 2s is on/off function, short press is switch mode, it’s with 5 different modes. Double click music play/pause. 3.charging access Instruction: The machine’s operation key uses touch key. *For user who has eye diseases and did surgery on the eyes or any part near the eyes are prohibited to use the massager. *Convex eye and serious short-sighted (> 600) needs doctor advice to use this massager. *Do not use water to clean the massager, use alcohol pad/cotton instead. *Under age, disabled person, the elderly need adult supervision to use the massager. *This is a healthcare product for personal use, not a medical product. *Do not dismantle, hit, press the lithium battery in the massager or put it in fire. If the battery bulges, stop using the massager.Applicable scenarios/people: Wear the massager while sleeping to relax your eyes. This product is not allowed to be used by those who have experienced surgery for eye problems, glaucoma, cataracts, retinal detachment and other serious eye diseases. People who are sensitive to heat should be more careful. Note: Please remember to take off your glasses, contact lenses, hair accessories and keep your hands dry before using the massager to avoid discomfort. Gift options: This massager only weighs 0.35kg, you don't have to worry about it pressing on your face and nose. The elastic band design is suitable for a variety of people to wear easily. You can give this massager as a gift during the holidays. It would be a great gift for family, friends and neighbors. Hot compress massage: Our eye massager comes with a hot compress eye mask, providing a comfortable constant temperature of 107 degrees Fahrenheit (42°C), touch switching pressing mode, intelligent artificial voice broadcast, four pressing modes, Protection mode, Eyelove mode, Sleep mode and Hot mode, different The modes provide different massage experiences, cyclically massaging the eyes and temples to relieve eye fatigue. Bluetooth function: This eye massager can connect to the Bluetooth of your mobile phone. When you wear it to relax your eyes before going to bed, you can enjoy the massage while listening to music. It adopts a 180° folding design and is compact and easy to carry. Dimensions: length 8.5 inches, width 4.7 inches, height 3.5 inches (Expand).