【Supreme Eye Sauna - Relax with Warmth and Vibration】Monons Hot Eye Mask, Rechargeable Sleep Mask, 3D Stereoscopic, 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 by the Japan Textile Products Quality and Technology Center (QTEC) with 99.99% light blocking (※Individual fit may vary). Supports USB charging and can be used in various environments such as office naps, travel, and bedtime. 【3D Stereoscopic 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】Three-level temperature and 8-level vibration modes can be freely combined. In addition to the 4 basic modes (warmth/vibration/warmth & vibration/silent sleep), you can create 24 original settings to your liking. Japanese voice guidance supports operation 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 moment of peace and tranquility for a little daily rest. ★Earplugs are not included.