The wonder gifts for your family and your friends. ??[Vibration sounder prompt system]?ex.?When you start, a Vibrant reminder comes to tell you that it is really started. And, when you adjust the temperature, if the mask vibrate twice, you can know it is in the second temperature gear which make the thing easy, instead of you must take off the mask to make sure everything. ??[Clear battery indicators system] The E-warmer eye mask is powered by a lithium battery, and users who use cordless eye masks hope to see a simple and direct battery balance status, making it easy to understand how long the eye mask can still be used. The E-warmer did it. Clear four level battery indicators can clearly display the remaining state. At the same time, when you charge, it will also clearly display how much battery has been charged. Easy to use. ??[3 Levels-Adjustable Temperature and 15 safe auto off timer]This cordless heated eye mask has 3 levels of adjustable temperature design, 131-150? for relieve Dry Eyes, stye, MGD, etc, and /122-130? or 113-121? help fast sleeping and relaxing your eyes. ??[more times usage per charge]this mask is with the maximum capacity and longest usage time compared with other brands. The E-warmer eye mask uses a 1500MAH polymer lithium battery. When the eye mask is fully charged. It can be used 5--10 times per different temperature. It is so nice and convenient. If you using it twice a day, you just need charging it after 3-5 days. Almost other eye masks need charged every day. ??[Higher designed temperature] targeted improvement of Dry eyes The E-warmer eye mask uses the carbon fiber heating element to achieve 1-second temperature sensing, with a max temperature of 150F, greatly enhancing the effect of hot compress. ??[Well designed/More Lightweight/comfortable ]: E-warmer eye mask is smaller and lighter weighs only 65 g Coupled with soft cationic fabric, it is quite easy to wear without any heavy discomfort. The sponge with grooves structure inside the liner of the mask relieves the pressure on the eyeball. The curve that conforms to the shape of the nose bridge, the high nose is no longer pressed down by the eye mask. ?? [Convenient cordless heated eye mask] Get rid of the troubles caused by wire restrictions when using ordinary heated eye masks. Wireless eye masks are more convenient and effortless. You can apply this cordless eye mask to various occasions, such as home, office, train, or travel. You can take out it anytime and anywhere to soothe your eyes and relieve eye fatigue.