Warranty and Service: We're confidence you'll not regret to buy it. If you feel our products isn't doing the job, please let us know. We provide 2 years warranty for the products and unlimited professional customer service. If you have any problem, please email us, we will try our best to satisfy you in the first time.Instructions Video: https://youtu.be/a1FZNdcw2ZU Who are the main customers -People who facing the computer all day, the eye pressure is really big, always feel uncomfortable - People who work under pressure and need relaxation - A student with excessive eyes work - People who have Insomnia, sleep at night quality is not good, easy to form dark circles Instructons: -Insert the controllert plug fully into the inlet on eye mask -Insert the USB plug into a USB charger -Set the heating temperature and timing -Wear the eye mask and enjoy it - It's best to use 20mins each time,within 40~50℃. - After hot compress, coordinate with 5mins cold compress The Method of Using Gel Pack: ●Hot compress- Put the gel pack into the warm warter(70℃) for about 5mins. ●Cold compress- Store in the freezer for about 10mins-15mins to freeze the gel Product features: Color: Gray Size:7.6in*4.1in Weight:77g Power supply: 5V(USB) 4 Classes Heating temperature: 35℃, 40℃, 45℃, 50℃ 4 Classes timing: 10min,15min,20min,30min
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