Product Function: It is super helpful to relieve the fatigue of your eyes after working in front of computer screens or driving for a long time. The strap can be stretched easily and the temperature can be adjusted to your most comfortable level. This sleep mask can improve your sleep quality effectively and provides you a peaceful and wonderful sleep. Simple design and light material makes this eye mask easy to carry so that you can enjoy an eye SPA anytime and anywhere. It can be connected to the port of computer, power bank, USB adapter, cars and so on. It is a superb travel and daily life companion. MONIMO steam eye mask is the perfect gift for mother, girlfriend and female friends. Safe Material Technology: This eye mask adopt physical heating technology, safer, longer lasting, even heat, healthy and comfortable advantages of this material are light, safe, stable performance and long service life. This attribute can promote blood circulation and increase cell regeneration and therefore lead to better health. Instructions: In order to enhance the steam effect, warm water can be sprayed in the eye mask and warmed up five minutes before use. Set the temperature and down time, start hot pressing, the recommended temperature is 45-50 ° C, each heating time is 20 minutes. Eye mask can alleviate dark circles, eye bags, and tired eyes after long hours of work. Parameter Information: Name:USB Steam Hot Eye Mask Steam eye mask size: 195*105MM Weight: 240g Voltage: 5V Heating temperature: 30-50℃ (room temperature 20℃) Applicable people: Long-term learning, desk work and long-term use of mobile phones, computers and other eye fatigue Package List: 1 X Heated Eye Mask 1 X USB Cable 1 X Instructions 1 X Small spray empty bottle