1. Material: The eye mask is made of high grade cotton. It is lightweight, soft and breathable,and will not stuffy eyes. The shape of the product is designed to fit the contours of the eyes without causing pressure on the eyes. The length of the eye mask strap can be ly adjusted according to the head circumference. 2. 3 In 1 Function Design: Three-in-one functional design: Eye Massager built-in micro-vibrator and equipped with intelligent temperature control system,which combines the three functions of vibration massage, heating compress and cooling compress, and is able to effectively relieve migraines and eye fatigue brought about by long hours of work or the use of electronic devices. 3. One-button operation: The eyemask features one-button operation that is easy to understand. You just need to switch back and forth between long and short presses or single and double clicks to switch on and off or switch modes. Adjust the length of the strap and select your favorite relaxation mode to close your eyes and start using it, enjoying the dual treatment of heat and massage. 4. Multiple Usage Scenarios: Give your eyes a short break between intense work in the office. Relieve eye fatigue and dryness caused by long hours of study in the busy study life. On the go, whether you are on the plane, train, or in the long-distance bus, when you need to close your eyes to rest, just gently put on, you can enjoy the comfort of eye care.