About this product: 【99.99% Light Blocking Rate *Test results for the fabric alone】The light blocking rate of 99.99% has been confirmed by the Japan Textile Products Quality and Technology Center (QTEC) through testing of the fabric alone. With a three-dimensional 3D structure, although the fit during wear varies from person to person, the design does not put pressure on the eyelashes, providing a comfortable light-blocking space even during naps in the office or while traveling. It significantly reduces light leakage during sleep, supporting high-quality sleep. 【Freely combine, refresh your eyes】Three levels of heat mode and eight levels of 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 to operate with Japanese voice guidance, and the three-dimensional design puts no burden on your eyelashes. 【Earplugs included! The strongest sleep combination that blocks light and sound】Comes with dedicated, removable earplugs (can be used separately). The soft silicone material fits comfortably in your ears, and when combined with the hot eye mask, it completely shuts out light and sound. 【1000mAh large capacity, reusable eye mask】Can be used approximately 15 times on a single charge. Compared to disposable types, it is an economical design that can save about 90% of the cost over three years. The removable built-in pad is washable. The luxurious Lycra material feels great on the skin and is reusable, making it ideal for daily use and environmentally friendly.