Product Features Three-level intelligent temperature control for precise adaptation to your needs. Low setting (45°C) (green light): Relieves fatigue, perfect for daily relaxation or a midday nap. Mid-range setting (55°C) (blue light, default): Deep heat for relief of dry eyes and dark circles. High setting (62°C) (red light): Quickly improves blood circulation, relieves migraines and eye strain. 15-minute intelligent timer: Scientifically manages time, avoids overuse, and is safe and energy-efficient. Detachable design for hassle-free cleaning. The outer satin cover is removable and washable: made of ultra-soft, skin-friendly silk and crystal, it's moisture-wicking and breathable, and won't fade after repeated washing. The inner heating device is waterproof and sealed: IPX4 splash-proof, with circuit insulation protection for durability and safety. Lightweight and portable, with a long-lasting large-capacity battery: A full charge supports 4-5 uses (mid-range), and Type-C fast charging is compatible. Weighing only 85g: It conforms to your face without pressure, allowing you to easily adapt to office, travel, or home settings. Full home quality assurance: Overtemperature protection + automatic power off Instructions: 1. Press and hold the power button (about 3 seconds) to turn on. The power button has three settings: the default setting is mid-range (approximately 55°C, blue light), and the default setting is low (approximately 45°C, green light) and high (approximately 62°C, red light). You can adjust the heat compress temperature to your desired comfort level by pressing the button. 3. The power will automatically turn off after 15 minutes of use. If you need to continue using it, just turn it on again. Color: As shown Material: Crystal Velvet + Polyester Package Contents: 1* Eye Mask