Product DescriptionMaterial: Flannel size: 19.5*10.5cm Control: Four-speed constant temperature Heating temperature: 35-50 degrees Celsius (normal temperature 20 degrees Celsius) 5V power supply: USB Socket Color: Color Quantity: 1 piece Package Content: 1pc * Steam Eye Mask (battery not included) 1. Due to its size, the mask is ideal for relaxation, stress relief and headache relief. It can also be used as a simple sleep mask. For that extra feel-good factor, there is an option to add a pleasant scent with an insert pad. To enhance aromatherapy, masks can provide low levels of humidity. 2. COMFORTABLE - Easily adjust with elastic straps, comfortable to wear and opaque. The curved shape adapts to different face shapes without creating pressure points. 3. Individually adjustable - Adjustable in 4 heat levels and 4 time intervals from 35 to 50 C. When the time is up, it switches off automatically. 4. FLEXIBLE USE - The eyecup can be used comfortably on the go with a USB adapter on a PC/laptop, power bank, car or other USB connection. You can take it all with you in the included carrying case. It is also more economical than single-use disposable evaporative eye masks. 5. SOFT AND SAFE - The inside of the eye mask is made of soft and fluffy material, giving your eyes only the softest touch. Unlike traditional microwave glasses, these glasses have been extensively tested during development to avoid the risk of damage from overheating.