3-Temp Modes for Dry Eye Relief Our heated eye mask provides 3 temperature settings (108 /128 /146 ) to meet your different usage needs.You can choose the appropriate temperature to ease dry eyes, styes, and some eyes symptoms else Cordless & Long-Lasting Portability Our heated eye mask is equipped with a Type-C charging cable and a rechargeable battery. After being fully charged, the eye mask can be used 4 times at any temperature. Supports multiple charging methods (USB port, PC, mobile power). This portable heated eye mask is for travel, over work, and before sleeping Smart Auto Shut-Off & Effortless Operation This eye mask have 15-minute automatic timer shut-off function. Long press to turn it on or off, and a single click to set the use temperature. This warm eye compresses for dry eyes hugs your face weightlessly Hygienic & Machine-Washable Design Prioritize cleanliness with a detachable, machine-washable cover (liner heating core must not be washed)