【Supreme Eye Sauna - Relax with Warmth and Vibration】Monons Hot Eye Mask, Rechargeable Eye Mask for Sleep, 3D Ergonomic Design, Japanese Voice Guidance, 3-Level Temperature Modes, Eye Warmer, Cordless, Eye Care, Sleep Aid, Reusable, Unisex, Gift, Black ♡ Product Description ♡ 【Rechargeable Sleep Eye Mask with 99.99% Light Blocking】Certified by the Japan Textile Products Quality and Technology Center (QTEC) for 99.99% light blocking (※Individual fit may vary). Supports USB charging, allowing use in various environments such as office naps, travel, and bedtime. 【3D Ergonomic Design for Gentle Coverage】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 - Customizable Combinations】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 operation while wearing the eye mask. 【High-Capacity Battery & Auto-Off Function】Equipped with a 1000mAh high-capacity battery. Usable for approximately 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 everyone. Because it doesn't require a specific size, it's a great gift for loved ones. Delivers a moment of peace and relaxation for a little daily rest.