Hot Eye Mask for Sleep, Eye Sauna, Certified by Japan Textile Products Quality and Technology Center, 99.99% Light Blocking, 3D Ergonomic Design, No Pressure, Hot USB Rechargeable, Heat & Vibration, Cordless, Breathable, Lightweight, Relaxing, Eye Cover, Father's Day Gift, Black 【99.99% Light Blocking Certification (Fabric Test) for a Deep Sleep Until Morning】Achieved 99.99% light blocking rate in a fabric-only test by the Japan Textile Products Quality and Technology Center (JTETC). Due to the 3D ergonomic design, complete coverage may vary by individual. The structure eliminates pressure on eyelashes, providing a comfortable light-blocking environment for office naps and travel. Significantly reduces light leakage during sleep, supporting improved sleep quality. 【Freely Combine, Refresh Your Eyes】Three-level heat mode and eight-level vibration mode can be freely combined. In addition to the four basic modes (heat/vibration/heat & vibration/silent sleep), you can create 24 original settings to your liking. Easy operation with Japanese voice guidance, and the ergonomic design puts no burden on eyelashes. 【Earplugs Included! The Ultimate Sleep Combo That Blocks Light and Sound】Comes with dedicated, removable earplugs (can be used separately). Soft silicone material fits the ears, and when combined with the hot eye mask, completely shuts out light and sound. 【1000mAh Large Capacity, Reusable Eye Mask】Can be used approximately 15 times on a single charge. Economical design that saves about 90% of the cost over 3 years compared to disposable types. The removable inner pad is washable. The luxurious Lycra material feels great on the skin and the reusable eco-friendly design is perfect for daily use and environmental consideration. 【The Best Gift, Heartwarming After-Sales Service】A rechargeable eye mask that relieves eye fatigue and improves sleep quality. In addition to everyday use, it comes with a 1-year warranty and is a welcome gift for loved ones. Professional-grade heating effects and heartfelt service promise a special gift.