【Supreme Eye Sauna - Relax with Warmth and Vibration】Monons Hot Eye Mask, Rechargeable Eye Mask for Sleep, 3D Stereo Type, Japanese Voice, 3-Level Temperature Mode, Eye Warmer, Cordless, Eye Care, Sleep Aid, Reusable, Unisex, Gift, Black 【99.99% Light Blocking Rechargeable Sleep Eye Mask】Certified 99.99% light blocking by the Japan Textile Products Quality and Technology Center (QTEC) test (※Individual differences in fit may occur). Compatible with USB charging, it can be used in various environments such as office naps, during travel, and before bed. 【3D Stereo Design Gently Envelops】3D memory foam fits perfectly around the eyes, reducing pressure. The elastic strap and head protection design gently support the head, reducing strain even with prolonged use. 【Warmth x Vibration - Free Combination】Freely combine three temperature levels and eight vibration modes. In addition to the four basic modes (warmth/vibration/warmth & vibration/silent sleep), you can create 24 original settings to your liking. Japanese voice guidance supports operations while wearing the eye mask. 【Large Capacity Battery & Auto-Off Function】Equipped with a 1000mAh large capacity battery. Usable for about 15 times on a single charge. Automatically turns off after 15 minutes of inactivity, eliminating the worry of forgetting to turn it off, making it eco-friendly and economical. 【Unisex & Adjustable Eye Mask】With an adjuster, it fits perfectly for each individual. Because it doesn't require a size selection, it's also a great gift for loved ones. Delivers a relaxing moment for a little daily rest.