Description: 3 levels of temperature adjustment, LOW level 40C for constant temperature enjoyment, Middle level 48C for soothing the eye area, HIGH level 55C for scientific eye protection. USB heating, 154cm long USB cable, free and convenient, comfortable to wear. Adjustable and elastic eye mask, suitable for different head circumferences. The inner pocket is designed to place the cotton pad soaked by essence or toner. Ventilation holes design, convenient to heat around the eyes and accelerate the absorption of essence, toner and eye cream. Hot compress function, warm the eye area to relieve eye fatigue. Suitable for puffy eyes, dry eyes and dark circles.The heated eye mask can be also used to heat the cervical spine, relax tired neck. It can be also used as a sleeping eye mask, 360 shading, sleeping at ease. Easy to clean, high quality silicone material, just slightly wiped with a damp cloth. Please avoide the surrounding area of the USB interface and cannot be washed with water. Specification: Product size: 640x81x2mm/25.20x3.19x0.08inch Material: Silicone Package Includes: 1 Piece Eye Mask 1 Piece USB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!